diff --git a/openscad.pro b/openscad.pro
index 2ed04478..75466679 100644
--- a/openscad.pro
+++ b/openscad.pro
@@ -77,6 +77,8 @@ HEADERS += src/CGAL_renderer.h \
            src/printutils.h \
            src/value.h
 
+macx: HEADERS += src/EventFilter.h
+
 SOURCES += src/openscad.cc \
            src/mainwin.cc \
            src/glview.cc \
diff --git a/src/parser.y b/src/parser.y
index c4cd3d46..91d49cf8 100644
--- a/src/parser.y
+++ b/src/parser.y
@@ -20,7 +20,10 @@
 
 %{
 
-#include "openscad.h"
+#include "module.h"
+#include "expression.h"
+#include "value.h"
+#include "function.h"
 #include "printutils.h"
 
 int parser_error_pos = -1;