diff --git a/src/lay/lay/lay.pro b/src/lay/lay/lay.pro
index 875c5bf13..a4599dfca 100644
--- a/src/lay/lay/lay.pro
+++ b/src/lay/lay/lay.pro
@@ -11,7 +11,6 @@ HEADERS = \
     layClipDialog.h \
     layCrashMessage.h \
     layFillDialog.h \
-    layGenericSyntaxHighlighter.h \
     layGSIHelpProvider.h \
     layHelpDialog.h \
     layHelpProvider.h \