diff --git a/jenkins-sflphone-android.sh b/jenkins-sflphone-android.sh
index a63bf2bbfbce1165dc790fe6a27c7de3fc7e5b4d..546cb689bacd6271a206bd908ef6732ab8d788e1 100755
--- a/jenkins-sflphone-android.sh
+++ b/jenkins-sflphone-android.sh
@@ -112,6 +112,7 @@ build_sflphone_android() {
     ndk-build -j4
 
     echo "Build Java application"
+    ant clean 
     ant debug
 
     echo "Upload sflphone on the virtual device"