diff --git a/prepare.py b/prepare.py
index 1a5c227b6..13ee6421a 100755
--- a/prepare.py
+++ b/prepare.py
@@ -331,6 +331,7 @@ linphone-android-sdk: java-clean build copy-libs $(TOPDIR)/res/raw/rootca.pem
 mediastreamer2-sdk: build copy-libs
 \t@cd $(TOPDIR)/submodules/mediastreamer2/java && \\
 \t./gradlew -b mediastreamerSdk.gradle assembleRelease
+\t@cd $(TOPDIR)/submodules/mediastreamer2/java && \\
 \t./gradlew -b mediastreamerSdk.gradle sdkZip
 
 liblinphone_tester: