diff --git a/tests/scripts/check-generated-files.sh b/tests/scripts/check-generated-files.sh
index 23b3148..ea0aadd 100755
--- a/tests/scripts/check-generated-files.sh
+++ b/tests/scripts/check-generated-files.sh
@@ -60,7 +60,11 @@
     fi
 
     for FILE in $FILES; do
-        cp $FILE $FILE.bak
+        if [ -e "$FILE" ]; then
+            cp "$FILE" "$FILE.bak"
+        else
+            rm -f "$FILE.bak"
+        fi
     done
 
     $SCRIPT
@@ -76,7 +80,7 @@
         if [ -z "$UPDATE" ]; then
             mv $FILE.bak $FILE
         else
-            rm $FILE.bak
+            rm -f "$FILE.bak"
         fi
 
         if [ -d $TO_CHECK ]; then