diff --git a/Source/cmCommandArgumentLexer.cxx b/Source/cmCommandArgumentLexer.cxx
index a2e843c8a..bb9caf57b 100644
--- a/Source/cmCommandArgumentLexer.cxx
+++ b/Source/cmCommandArgumentLexer.cxx
@@ -1,3 +1,5 @@
+#include "cmStandardIncludes.h"
+
 #line 2 "cmCommandArgumentLexer.cxx"
 
 #line 4 "cmCommandArgumentLexer.cxx"