diff --git a/pkgs/servers/sql/mariadb/connector-c/default.nix b/pkgs/servers/sql/mariadb/connector-c/default.nix
index cf60c92808d6..f3ae54e43a5a 100644
--- a/pkgs/servers/sql/mariadb/connector-c/default.nix
+++ b/pkgs/servers/sql/mariadb/connector-c/default.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   cmake,
   curl,
   openssl,
@@ -28,6 +29,14 @@ stdenv.mkDerivation {
     inherit hash;
   };
 
+  patches = [
+    # fix compilation against gcc15
+    (fetchpatch {
+      url = "https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8448137f3365568090d5c0d4051039ddc1cdb6f.patch";
+      hash = "sha256-aDbaaJA8DxGG5RrOa+CHhk4wuzlBy5tWyS+f/zVYU0c=";
+    })
+  ];
+
   outputs = [
     "out"
     "dev"