diff --git a/jenkins/UI/start_build b/jenkins/UI/start_build
index 05a191c329516a3efedb14c08615bf078dd22bd5..772a3c2ee52cf282f0923b7690619ad65f0f4a07 100755
--- a/jenkins/UI/start_build
+++ b/jenkins/UI/start_build
@@ -39,7 +39,7 @@ else
 fi
 INFO "starting build"
 
-make -j16 -C UI || FATAL "Make failed"
+make -j16 || FATAL "Make failed"
 sudo make install || FATAL "Make install Failed"
 
 RC=0