diff --git a/pkgs/tools/graphics/mangohud/default.nix b/pkgs/tools/graphics/mangohud/default.nix
index 15ebc4ea4fe6..8844acdb11c9 100644
--- a/pkgs/tools/graphics/mangohud/default.nix
+++ b/pkgs/tools/graphics/mangohud/default.nix
@@ -128,6 +128,11 @@ stdenv.mkDerivation (finalAttrs: {
       libdbus = dbus.lib;
       inherit hwdata;
     })
+
+    # Fix crash when starting hidden
+    # Upstream PR: https://github.com/flightlessmango/MangoHud/pull/1570
+    # FIXME: remove when merged
+    ./fix-crash.patch
   ];
 
   postPatch = ''
diff --git a/pkgs/tools/graphics/mangohud/fix-crash.patch b/pkgs/tools/graphics/mangohud/fix-crash.patch
new file mode 100644
index 000000000000..e25d953f300d
--- /dev/null
+++ b/pkgs/tools/graphics/mangohud/fix-crash.patch
@@ -0,0 +1,40 @@
+From f0d7e4f4b2d362d90bb81d0b10ef5c505b9661ea Mon Sep 17 00:00:00 2001
+From: K900 <me@0upti.me>
+Date: Fri, 14 Feb 2025 11:41:09 +0300
+Subject: [PATCH] mangoapp: don't crash if gpus is not initialized yet
+
+This seems to happen on startup on Steam Deck style gamescope-session setups.
+Just check for gpus = null before trying to access it.
+---
+ src/app/main.cpp | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/src/app/main.cpp b/src/app/main.cpp
+index 0c7c13e07e..4d1d3b1277 100644
+--- a/src/app/main.cpp
++++ b/src/app/main.cpp
+@@ -369,8 +369,9 @@ int main(int, char**)
+                 XSync(x11_display, 0);
+                 mangoapp_paused = false;
+                 // resume all GPU threads
+-                for (auto gpu : gpus->available_gpus)
+-                    gpu->resume();
++                if (gpus)
++                    for (auto gpu : gpus->available_gpus)
++                        gpu->resume();
+             }
+             {
+                 std::unique_lock<std::mutex> lk(mangoapp_m);
+@@ -409,8 +410,9 @@ int main(int, char**)
+             XSync(x11_display, 0);
+             mangoapp_paused = true;
+             // pause all GPUs threads
+-            for (auto gpu : gpus->available_gpus)
+-                gpu->pause();
++            if (gpus)
++                for (auto gpu : gpus->available_gpus)
++                    gpu->pause();
+ 
+             // If mangoapp is hidden, using mangoapp_cv.wait() causes a hang.
+             // Because of this hang, we can't detect if the user presses R_SHIFT + F12,
+