diff --git a/src/main.zig b/src/main.zig
index b8a70a1..66f9cce 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -109,7 +109,10 @@ pub fn doRepl(allocator: *std.mem.Allocator, args_it: var) !void {
         lang.reset();
 
         var rd_line = readline.readline(c"> ");
-        if (rd_line == null) break;
+        if (rd_line == null) {
+            std.debug.warn("leaving from eof\n");
+            break;
+        }
         readline.add_history(rd_line);
         //defer std.heap.c_allocator.destroy(rd_line);