diff --git a/install-script.sh b/install-script.sh
index c5ae72c3..2f0e5775 100755
--- a/install-script.sh
+++ b/install-script.sh
@@ -24,7 +24,7 @@ key="$1"
 
 case $key in
     -s|--source-dir)
-    SRCDIR="$2"
+    SRCDIR=$(realpath "$2")
     shift # past argument
     shift # past value
     ;;