diff --git a/Modules/CMakeCCompilerId.c.in b/Modules/CMakeCCompilerId.c.in
index 16e19cdd8..78d7c4721 100644
--- a/Modules/CMakeCCompilerId.c.in
+++ b/Modules/CMakeCCompilerId.c.in
@@ -217,7 +217,7 @@
 #  define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION    % 10)
 # endif
 
-/* This compiler is either not known or is too old to define an
+/* These compilers are either not known or too old to define an
    identification macro.  Try to identify the platform and guess that
    it is the native compiler.  */
 #elif defined(__sgi)
diff --git a/Modules/CMakeCXXCompilerId.cpp.in b/Modules/CMakeCXXCompilerId.cpp.in
index d81df77f1..f7ad80ee2 100644
--- a/Modules/CMakeCXXCompilerId.cpp.in
+++ b/Modules/CMakeCXXCompilerId.cpp.in
@@ -210,7 +210,7 @@
 #  define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION    % 10)
 # endif
 
-/* This compiler is either not known or is too old to define an
+/* These compilers are either not known or too old to define an
    identification macro.  Try to identify the platform and guess that
    it is the native compiler.  */
 #elif defined(__sgi)