diff --git a/editor/Makefile.in b/editor/Makefile.in
index d8d410c150f1..da60c7f7cb71 100644
--- a/editor/Makefile.in
+++ b/editor/Makefile.in
@@ -22,11 +22,14 @@ srcdir		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-DIRS = public core
+DIRS = public
 
+ifdef MOZ_EDITOR
+DIRS += core
 ifdef ENABLE_TESTS
 DIRS += tests
 endif
+endif
 
 include $(topsrcdir)/config/config.mk