diff --git a/libcvautomation_funcs b/libcvautomation_funcs
index 16e9bec..b30c338 100644
--- a/libcvautomation_funcs
+++ b/libcvautomation_funcs
@@ -665,7 +665,7 @@ key_down ()
 
 	out "key_down: $1"
 
-	eval "$CVAINPUT -s 'keydown $1' >> $OUTFILE"
+	eval '$CVAINPUT -s "keydown $1" >> $OUTFILE'
 
 	return $?
 }	# ----------  end of function key_down  ----------