diff --git a/src/client/Makefile.am b/src/client/Makefile.am
index a79b720aa3..3621ef1a66 100644
--- a/src/client/Makefile.am
+++ b/src/client/Makefile.am
@@ -44,6 +44,7 @@ BUILT_SOURCES = lyxclient.cpp
 CLEANFILES += lyxclient.cpp
 
 lyxclient_SOURCES = lyxclient.cpp $(HEADERFILES)
+CLEANFILES += lyxclient.cpp
 
 else