diff --git a/Source/cmInstalledFile.h b/Source/cmInstalledFile.h
index 4fe8134625..fbf754ffd3 100644
--- a/Source/cmInstalledFile.h
+++ b/Source/cmInstalledFile.h
@@ -3,6 +3,8 @@
 #ifndef cmInstalledFile_h
 #define cmInstalledFile_h
 
+#include "cmConfigure.h" // IWYU pragma: keep
+
 #include "cmGeneratorExpression.h"
 #include "cm_auto_ptr.hxx"