diff --git a/scripts/customwidget.cpp.template b/scripts/customwidget.cpp.template
index a9674082831..ec232009959 100644
--- a/scripts/customwidget.cpp.template
+++ b/scripts/customwidget.cpp.template
@@ -61,7 +61,7 @@ bool %CLASSMIXEDCASE%Plugin::isInitialized() const
 
 void %CLASSMIXEDCASE%Plugin::initialize( QDesignerFormEditorInterface *core )
 {
-  Q_UNUSED( core );
+  Q_UNUSED( core )
   if ( mInitialized )
     return;
   mInitialized = true;
diff --git a/scripts/customwidget.h.template b/scripts/customwidget.h.template
index 75becbaedae..9b33b557d12 100644
--- a/scripts/customwidget.h.template
+++ b/scripts/customwidget.h.template
@@ -20,6 +20,7 @@
 #include <QtGlobal>
 #include <QtUiPlugin/QDesignerCustomWidgetInterface>
 #include <QtUiPlugin/QDesignerExportWidget>
+#include "qgis_customwidgets.h"
 
 
 class CUSTOMWIDGETS_EXPORT %CLASSMIXEDCASE%Plugin : public QObject, public QDesignerCustomWidgetInterface
diff --git a/scripts/customwidget_create.sh b/scripts/customwidget_create.sh
index 282af0641ef..d221ebd7a2c 100755
--- a/scripts/customwidget_create.sh
+++ b/scripts/customwidget_create.sh
@@ -9,6 +9,12 @@
 
 set -e
 
+# GNU prefix command for mac os support (gsed, gsplit)
+GP=
+if [[ "$OSTYPE" =~ darwin* ]]; then
+  GP=g
+fi
+
 CLASSNAME=$1
 
 TODAY=$(date '+%d.%m.%Y')
@@ -27,13 +33,11 @@ for i in "${EXT[@]}"
 do
 	DESTFILE=$DIR/../src/customwidgets/${CLASSLOWER}plugin.$i
 	cp "$DIR"/customwidget."$i".template "$DESTFILE"
-	sed -i s/%DATE%/"$TODAY"/g "$DESTFILE"
-	sed -i s/%YEAR%/"$YEAR"/g "$DESTFILE"
-	sed -i s/%AUTHOR%/"$AUTHOR"/g "$DESTFILE"
-	sed -i s/%EMAIL%/"$EMAIL"/g "$DESTFILE"
-	sed -i s/%CLASSUPPERCASE%/"$CLASSUPPER"/g "$DESTFILE"
-	sed -i s/%CLASSLOWERCASE%/"$CLASSLOWER"/g "$DESTFILE"
-	sed -i s/%CLASSMIXEDCASE%/"$CLASSNAME"/g "$DESTFILE"
+	${GP}sed -i s/%DATE%/"$TODAY"/g "$DESTFILE"
+	${GP}sed -i s/%YEAR%/"$YEAR"/g "$DESTFILE"
+	${GP}sed -i s/%AUTHOR%/"$AUTHOR"/g "$DESTFILE"
+	${GP}sed -i s/%EMAIL%/"$EMAIL"/g "$DESTFILE"
+	${GP}sed -i s/%CLASSUPPERCASE%/"$CLASSUPPER"/g "$DESTFILE"
+	${GP}sed -i s/%CLASSLOWERCASE%/"$CLASSLOWER"/g "$DESTFILE"
+	${GP}sed -i s/%CLASSMIXEDCASE%/"$CLASSNAME"/g "$DESTFILE"
 done
-
-