diff --git a/openbox/Makefile.am b/openbox/Makefile.am
index 0b2bcbe8..2503354f 100644
--- a/openbox/Makefile.am
+++ b/openbox/Makefile.am
@@ -42,7 +42,7 @@ parse.h: y.tab.h
 
 y.tab.h: y.tab.c
 
-y.tab.c: parse.yacc
+y.tab.c: parse.y
 	$(YACC) -d $<
 
 MAINTAINERCLEANFILES= Makefile.in
diff --git a/openbox/parse.yacc b/openbox/parse.y
similarity index 100%
rename from openbox/parse.yacc
rename to openbox/parse.y