diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index bb75cc1f4..780618af0 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -144,7 +144,7 @@ static const char* cmCTestWarningMatches[] = {
   "WARNING: ",
   "([^ :]+) : warning",
   "([^:]+): warning",
-  "\", line [0-9]+\\.[0-9]+: [0-9]+-[0-9]+ \\([W]\\)",
+  "\", line [0-9]+\\.[0-9]+: [0-9]+-[0-9]+ \\(W\\)",
   0
 };