diff --git a/Makefile.am b/Makefile.am
index 5779c1319a..ac59e2835a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -302,7 +302,7 @@ clean-local:
 
 .PHONY: built-sources
 
-built-sources: build.h errorfiles
+built-sources: build.h errorfiles $(JAVASCRIPT_HEADER)
 
 ################################################################################
 ## --SECTION--                                                      DEPENDENCIES