diff --git a/metadata/de.skubware.opentraining.txt b/metadata/de.skubware.opentraining.txt
index b44582df0d..7e22197099 100644
--- a/metadata/de.skubware.opentraining.txt
+++ b/metadata/de.skubware.opentraining.txt
@@ -28,6 +28,11 @@ Build Version:0.4,11,v0.4,subdir=app,\
 srclibs=ActionBarSherlock@90939dc,extlibs=junit/junit-4.10.jar,prebuild=\
 sed -i 's@\(reference.1=\).*@\1$$ActionBarSherlock$$@' project.properties
 Build Version:0.5,18,v0.5,target=android-18,subdir=app,\
+extlibs=junit/junit-4.10.jar,prebuild=\
+	cp -R $$SDK$$/extras/android/support/v7/appcompat/ appcompat/ && \
+	echo -e "\nandroid.library.reference.1=./appcompat/" >> ./local.properties && \
+	$$SDK$$/tools/android update lib-project --path ./appcompat/
+Build Version:0.5.1,19,v0.5.1,target=android-18,subdir=app,\
 extlibs=junit/junit-4.10.jar,prebuild=\
 	cp -R $$SDK$$/extras/android/support/v7/appcompat/ appcompat/ && \
 	echo -e "\nandroid.library.reference.1=./appcompat/" >> ./local.properties && \