diff --git a/cargo.sh b/cargo.sh
index 8a68bc11..cc7ed165 100755
--- a/cargo.sh
+++ b/cargo.sh
@@ -7,7 +7,7 @@
 set -e
 
 SCRIPT_PATH=`realpath $0`
-SOURCE_DIR=`dirname $0`
+SOURCE_DIR=`dirname $SCRIPT_PATH`
 
 export CARGO_TARGET_DIR=`pwd`
 if [ ! -z ${1} ]; then