diff --git a/pkgs/development/tools/oq/default.nix b/pkgs/development/tools/oq/default.nix
index 3c2a0223dd41..8e23e72912b0 100644
--- a/pkgs/development/tools/oq/default.nix
+++ b/pkgs/development/tools/oq/default.nix
@@ -1,5 +1,6 @@
 { lib
 , fetchFromGitHub
+, fetchpatch
 , crystal
 , jq
 , libxml2
@@ -17,6 +18,13 @@ crystal.buildCrystalPackage rec {
     sha256 = "sha256-W0iGE1yVOphooiab689AFT3rhGGdXqEFyYIhrx11RTE=";
   };
 
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/Blacksmoke16/oq/commit/4f9ef2a73770465bfe2348795461fc8a90a7b9b0.diff";
+      hash = "sha256-Ljvf2+1vsGv6wJHl27T7DufI9rTUCY/YQZziOWpW8Do=";
+    })
+  ];
+
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ libxml2 ];
   nativeCheckInputs = [ jq ];