diff --git a/project/jni/Makefile.prebuilt b/project/jni/Makefile.prebuilt
index d0f277ae7..22943dbe6 100644
--- a/project/jni/Makefile.prebuilt
+++ b/project/jni/Makefile.prebuilt
@@ -74,8 +74,7 @@ $(ICONV) $(ICU): iconv/src/build.sh
 		cp -f $$ARCH/include/unicode/*.h ../../icuuc/include/unicode/  ; \
 		cp -f $$ARCH/include/layout/*.h ../../icuuc/include/layout/  ; \
 		cp -f $$ARCH/include/icu-le-hb/layout/*.h ../../icuuc/include/layout/  ; \
-	done && \
-	git clean -f -d -x
+	done
 
 $(OPENSSL): openssl/compile.sh
 	cd openssl && env ARCH_LIST="$(ARCH_LIST)" ./compile.sh
@@ -89,8 +88,6 @@ $(BOOST): boost/src/build-android.sh
 		$(foreach NAME, $(BOOST_LIBS), cp -f build/out/$$ARCH/lib/libboost_$(NAME)-clang-mt-*.a ../lib/$$ARCH/libboost_$(NAME).a || exit 1 ;) \
 		cp -r -f build/out/$$ARCH/include/boost-*/* ../include/ || exit 1 ; \
 	done || exit 1 ; \
-	git clean -f -d -x ; \
-	git -C libiconv-libicu-android clean -f -d -x ; \
 	$(foreach NAME, $(BOOST_LIBS), ln -sf boost ../../boost_$(NAME) ;)
 
 iconv/src/build.sh boost/src/build-android.sh:
diff --git a/project/jni/application/supertux/supertux b/project/jni/application/supertux/supertux
index d639eab61..ea606e3c6 160000
--- a/project/jni/application/supertux/supertux
+++ b/project/jni/application/supertux/supertux
@@ -1 +1 @@
-Subproject commit d639eab619b5e1ea090f5a52bd6839f8db557fff
+Subproject commit ea606e3c64b5cb133c432052dddbfb9db047b5f7