diff --git a/ckupeye b/ckupeye
index e39992d..c8c5a62 100755
--- a/ckupeye
+++ b/ckupeye
@@ -113,6 +113,12 @@ export BORG_BASE_DIR
 # Preparation
 #
 
+if [ -z $BORG_EXECUTABLE ]
+then
+    echo "Borg executable not found."
+    exit 1
+fi
+
 if [ -e $CLIENT_RUNFILE ] && ps -p $(cat $CLIENT_RUNFILE) > /dev/null
 then
     echo "Another backup instance is running. Skipping"