diff --git a/tests/examples/overlay/Makefile.am b/tests/examples/overlay/Makefile.am
index 6e9d286abe..55085521a5 100644
--- a/tests/examples/overlay/Makefile.am
+++ b/tests/examples/overlay/Makefile.am
@@ -36,7 +36,7 @@ nodist_qtgv_xoverlay_SOURCES = moc_qtgv-xoverlay.cpp
 moc_%.cpp:%.h
 	moc $< -o $@
 
-EXTRA_DIST = $(nodist_qtgv_xoverlay_SOURCES:moc_%.cpp=%.h) 
+EXTRA_DIST = $(nodist_qtgv_xoverlay_SOURCES:moc_%.cpp=%.h) qtgv-xoverlay.h
 CLEANFILES = $(nodist_qtgv_xoverlay_SOURCES)
 
 endif