diff --git a/src/lib/dns/tests/master_loader_unittest.cc b/src/lib/dns/tests/master_loader_unittest.cc
index 912a0b45349a607b8d88fe42c6fbb9b63bd24496..f4d19e8c51982c9b37259396456541d00b473a3d 100644
--- a/src/lib/dns/tests/master_loader_unittest.cc
+++ b/src/lib/dns/tests/master_loader_unittest.cc
@@ -527,7 +527,7 @@ TEST_F(MasterLoaderTest, ttlUnknownAndEOF) {
     // RDATA implementation can complain about it, too.  To be independent of
     // its details, we focus on the very last warning.
     EXPECT_FALSE(warnings_.empty());
-    checkCallbackMessage(*warnings_.rbegin(), "Unexpected end end of file", 1);
+    checkCallbackMessage(*warnings_.rbegin(), "Unexpected end of file", 1);
 }
 
 TEST_F(MasterLoaderTest, ttlOverflow) {