diff --git a/src/filepath.c b/src/filepath.c
index 673cdb5..02e7ed7 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -3354,7 +3354,7 @@
 
 #ifdef FEAT_EVAL
     if (*cmd == '=')	    // `={expr}`: Expand expression
-	buffer = eval_to_string(cmd + 1, TRUE);
+	buffer = eval_to_string(cmd + 1, TRUE, FALSE);
     else
 #endif
 	buffer = get_cmd_output(cmd, NULL,