diff --git a/src/bin/dhcp4/ctrl_dhcp4_srv.cc b/src/bin/dhcp4/ctrl_dhcp4_srv.cc
index e251b48b8baf878fad3d3e0864a17cbfcae278cc..3964a1a3fb08c557a93d2f3e40342b9f1157240f 100644
--- a/src/bin/dhcp4/ctrl_dhcp4_srv.cc
+++ b/src/bin/dhcp4/ctrl_dhcp4_srv.cc
@@ -232,7 +232,7 @@ ControlledDhcpv4Srv::commandConfigReloadHandler(const string&,
         LOG_ERROR(dhcp4_logger, DHCP4_DYNAMIC_RECONFIGURATION_FAIL)
             .arg(file);
         return (createAnswer(CONTROL_RESULT_ERROR,
-                             "Config reload failed:" + string(ex.what())));
+                             "Config reload failed: " + string(ex.what())));
     }
 }
 
diff --git a/src/bin/dhcp4/dhcp4_messages.cc b/src/bin/dhcp4/dhcp4_messages.cc
index cad1111a56b4c1e74c105d92bde3f736bf7034f1..0c8bf0158077001de797a4904f9c8df279501a19 100644
--- a/src/bin/dhcp4/dhcp4_messages.cc
+++ b/src/bin/dhcp4/dhcp4_messages.cc
@@ -188,7 +188,7 @@ const char* values[] = {
     "DHCP4_DHCP4O6_RECEIVE_FAIL", "failed to receive DHCPv4o6: %1",
     "DHCP4_DHCP4O6_RECEIVING", "receiving DHCPv4o6 packet from DHCPv6 server",
     "DHCP4_DHCP4O6_RESPONSE_DATA", "%1: responding with packet %2 (type %3), packet details: %4",
-    "DHCP4_DYNAMIC_RECONFIGURATION", "initiate server reconfiguration using file: %1, after receiving SIGHUP signal",
+    "DHCP4_DYNAMIC_RECONFIGURATION", "initiate server reconfiguration using file: %1, after receiving SIGHUP signal or config-reload command",
     "DHCP4_DYNAMIC_RECONFIGURATION_FAIL", "dynamic server reconfiguration failed with file: %1",
     "DHCP4_EMPTY_HOSTNAME", "%1: received empty hostname from the client, skipping processing of this option",
     "DHCP4_FLEX_ID", "flexible identifier generated for incoming packet: %1",
diff --git a/src/bin/dhcp4/dhcp4_messages.mes b/src/bin/dhcp4/dhcp4_messages.mes
index f7f1251440318a0fd1c2b09cdb96b46b28cbf195..40a02f109b8208299b560097fd247ab258397c62 100644
--- a/src/bin/dhcp4/dhcp4_messages.mes
+++ b/src/bin/dhcp4/dhcp4_messages.mes
@@ -270,9 +270,9 @@ information. The second and third argument contains the packet name
 and type respectively. The fourth argument contains detailed packet
 information.
 
-% DHCP4_DYNAMIC_RECONFIGURATION initiate server reconfiguration using file: %1, after receiving SIGHUP signal
+% DHCP4_DYNAMIC_RECONFIGURATION initiate server reconfiguration using file: %1, after receiving SIGHUP signal or config-reload command
 This is the info message logged when the DHCPv4 server starts reconfiguration
-as a result of receiving SIGHUP signal.
+as a result of receiving SIGHUP signal or config-reload command.
 
 % DHCP4_DYNAMIC_RECONFIGURATION_FAIL dynamic server reconfiguration failed with file: %1
 This is an error message logged when the dynamic reconfiguration of the
diff --git a/src/bin/dhcp4/tests/ctrl_dhcp4_srv_unittest.cc b/src/bin/dhcp4/tests/ctrl_dhcp4_srv_unittest.cc
index b76e8616e10b2f8626ab9a0fa6f708248f59e3ec..27ce7bf1dbaa7ae9a55bc55983531b38d1b69d68 100644
--- a/src/bin/dhcp4/tests/ctrl_dhcp4_srv_unittest.cc
+++ b/src/bin/dhcp4/tests/ctrl_dhcp4_srv_unittest.cc
@@ -1076,7 +1076,7 @@ TEST_F(CtrlChannelDhcpv4SrvTest, configReloadMissingFile) {
     sendUnixCommand("{ \"command\": \"config-reload\" }", response);
 
     // Verify the reload was rejected.
-    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed:"
+    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed: "
               "configuration error using file 'test6.json': Unable to open file "
               "test6.json\" }",
               response);
@@ -1102,7 +1102,7 @@ TEST_F(CtrlChannelDhcpv4SrvTest, configReloadBrokenFile) {
     sendUnixCommand("{ \"command\": \"config-reload\" }", response);
 
     // Verify the reload will fail.
-    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed:"
+    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed: "
               "configuration error using file 'test7.json': "
               "test7.json:1.1: Invalid character: g\" }",
               response);
diff --git a/src/bin/dhcp6/ctrl_dhcp6_srv.cc b/src/bin/dhcp6/ctrl_dhcp6_srv.cc
index ee95de32cd5b7bcd97e8a22c310b8ac49e87311e..8cb2737cce81f30cd2d3f6ad3066fdc6a0666a81 100644
--- a/src/bin/dhcp6/ctrl_dhcp6_srv.cc
+++ b/src/bin/dhcp6/ctrl_dhcp6_srv.cc
@@ -234,7 +234,7 @@ ControlledDhcpv6Srv::commandConfigReloadHandler(const string&,
         LOG_ERROR(dhcp6_logger, DHCP6_DYNAMIC_RECONFIGURATION_FAIL)
             .arg(file);
         return (createAnswer(CONTROL_RESULT_ERROR,
-                             "Config reload failed:" + string(ex.what())));
+                             "Config reload failed: " + string(ex.what())));
     }
 }
 
diff --git a/src/bin/dhcp6/dhcp6_messages.cc b/src/bin/dhcp6/dhcp6_messages.cc
index ccca0726be679b723b9593eb726018e0152a81d7..e98775602d493bc35da3bd33861f7401a7966643 100644
--- a/src/bin/dhcp6/dhcp6_messages.cc
+++ b/src/bin/dhcp6/dhcp6_messages.cc
@@ -195,7 +195,7 @@ const char* values[] = {
     "DHCP6_DHCP4O6_RECEIVE_FAIL", "failed to receive DHCPv4o6: %1",
     "DHCP6_DHCP4O6_RECEIVING", "receiving DHCPv4o6 packet from DHCPv4 server",
     "DHCP6_DHCP4O6_SEND_FAIL", "failed to send DHCPv4o6 packet: %1",
-    "DHCP6_DYNAMIC_RECONFIGURATION", "initiate server reconfiguration using file: %1, after receiving SIGHUP signal",
+    "DHCP6_DYNAMIC_RECONFIGURATION", "initiate server reconfiguration using file: %1, after receiving SIGHUP signal or config-reload command",
     "DHCP6_DYNAMIC_RECONFIGURATION_FAIL", "dynamic server reconfiguration failed with file: %1",
     "DHCP6_FLEX_ID", "flexible identifier generated for incoming packet: %1",
     "DHCP6_HANDLE_SIGNAL_EXCEPTION", "An exception was thrown while handing signal: %1",
diff --git a/src/bin/dhcp6/dhcp6_messages.mes b/src/bin/dhcp6/dhcp6_messages.mes
index ac797aaf1f47a9126e89baeb4b45948525b3b180..076cd86381ff8c1b978e030153c5e573a5365ad6 100644
--- a/src/bin/dhcp6/dhcp6_messages.mes
+++ b/src/bin/dhcp6/dhcp6_messages.mes
@@ -282,9 +282,9 @@ This error is output if the IPv6 DHCP server fails to send an assembled
 DHCPv4o6 message to a client. The reason for the error is included in the
 message.
 
-% DHCP6_DYNAMIC_RECONFIGURATION initiate server reconfiguration using file: %1, after receiving SIGHUP signal
+% DHCP6_DYNAMIC_RECONFIGURATION initiate server reconfiguration using file: %1, after receiving SIGHUP signal or config-reload command
 This is the info message logged when the DHCPv6 server starts reconfiguration
-as a result of receiving SIGHUP signal.
+as a result of receiving SIGHUP signal or config-reload command.
 
 % DHCP6_DYNAMIC_RECONFIGURATION_FAIL dynamic server reconfiguration failed with file: %1
 This is an error message logged when the dynamic reconfiguration of the
diff --git a/src/bin/dhcp6/tests/ctrl_dhcp6_srv_unittest.cc b/src/bin/dhcp6/tests/ctrl_dhcp6_srv_unittest.cc
index e8742cfd0e14a5ce2020f6d75c10c697e2a3035c..3162406ea254e3bfe2de7e35ec01accdadfd1bb4 100644
--- a/src/bin/dhcp6/tests/ctrl_dhcp6_srv_unittest.cc
+++ b/src/bin/dhcp6/tests/ctrl_dhcp6_srv_unittest.cc
@@ -1100,7 +1100,7 @@ TEST_F(CtrlChannelDhcpv6SrvTest, configReloadMissingFile) {
     sendUnixCommand("{ \"command\": \"config-reload\" }", response);
 
     // Verify the reload was rejected.
-    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed:"
+    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed: "
               "configuration error using file 'test6.json': Unable to open file "
               "test6.json\" }",
               response);
@@ -1126,7 +1126,7 @@ TEST_F(CtrlChannelDhcpv6SrvTest, configReloadBrokenFile) {
     sendUnixCommand("{ \"command\": \"config-reload\" }", response);
 
     // Verify the reload will fail.
-    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed:"
+    EXPECT_EQ("{ \"result\": 1, \"text\": \"Config reload failed: "
               "configuration error using file 'test7.json': "
               "test7.json:1.1: Invalid character: g\" }",
               response);