diff --git a/flake.lock b/flake.lock
index f2232572d..c77f3075b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -194,11 +194,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1713399763,
-        "narHash": "sha256-iaRpxQEbruPiWKi71uxb7fgamPvX3KdetzSwTM/Acck=",
+        "lastModified": 1713471830,
+        "narHash": "sha256-bx/GJfc5dc8WfThWNCWPzgWeiP89wWOfi0zkaosdbcU=",
         "owner": "mitchellh",
         "repo": "zig-overlay",
-        "rev": "1c839c53ad6ce53895f59432378efb602be19796",
+        "rev": "4c2dfbd41e220b9e1bbf12c38b98f56459e3b339",
         "type": "github"
       },
       "original": {
diff --git a/src/apprt/gtk/gresource.zig b/src/apprt/gtk/gresource.zig
index e0dc6f549..5705e96da 100644
--- a/src/apprt/gtk/gresource.zig
+++ b/src/apprt/gtk/gresource.zig
@@ -61,7 +61,8 @@ fn comptimeGenerateGResourceXML(comptime libadwaita: bool) []const u8 {
         var buf: [counter.bytes_written]u8 = undefined;
         var stream = std.io.fixedBufferStream(&buf);
         try writeGResourceXML(libadwaita, stream.writer());
-        return stream.getWritten();
+        const final = buf;
+        return final[0..stream.getWritten().len];
     }
 }