diff --git a/pkgs/by-name/pa/pasystray/package.nix b/pkgs/by-name/pa/pasystray/package.nix
index 26e344a7d3f5..68c9d59176b1 100644
--- a/pkgs/by-name/pa/pasystray/package.nix
+++ b/pkgs/by-name/pa/pasystray/package.nix
@@ -39,6 +39,12 @@ stdenv.mkDerivation rec {
       url = "https://sources.debian.org/data/main/p/pasystray/0.8.1-1/debian/patches/0002-Require-X11-backend.patch";
       sha256 = "sha256-6njC3vqBPWFS1xAsa1katQ4C0KJdVkHAP1MCPiZ6ELM=";
     })
+    # Fix build with GCC 15
+    # https://github.com/christophgysin/pasystray/pull/183.patch
+    (fetchpatch {
+      url = "https://github.com/christophgysin/pasystray/commit/9883809c7956471cf085ae90af4a9831c1234417.patch";
+      hash = "sha256-BQ10LddqE3XwUeRklZE3S3+KOjJ9BtfddaFswgUqZ5g=";
+    })
   ];
 
   nativeBuildInputs = [