diff --git a/pkgs/by-name/as/assimp/package.nix b/pkgs/by-name/as/assimp/package.nix
index 183254f19388..98efe5c597ea 100644
--- a/pkgs/by-name/as/assimp/package.nix
+++ b/pkgs/by-name/as/assimp/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   cmake,
   zlib,
   nix-update-script,
@@ -23,6 +24,16 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-ixtqK+3iiL17GEbEVHz5S6+gJDDQP7bVuSfRMJMGEOY=";
   };
 
+  patches = [
+    # Fix build with gcc15
+    # https://github.com/assimp/assimp/pull/6283
+    (fetchpatch {
+      name = "assimp-fix-invalid-vector-gcc15.patch";
+      url = "https://github.com/assimp/assimp/commit/59bc03d931270b6354690512d0c881eec8b97678.patch";
+      hash = "sha256-O+JPwcOdyFtmFE7eZojHo1DUavF5EhLYlUyxtYo/KF4=";
+    })
+  ];
+
   nativeBuildInputs = [ cmake ];
 
   buildInputs = [