diff --git a/src/detection/gpu/gpu_windows.c b/src/detection/gpu/gpu_windows.c
index ff8247a92..acfc609b6 100644
--- a/src/detection/gpu/gpu_windows.c
+++ b/src/detection/gpu/gpu_windows.c
@@ -298,7 +298,7 @@ const char* ffDetectGPUImpl(FF_MAYBE_UNUSED const FFGPUOptions* options, FFlist*
         if (options->driverSpecific && getDriverSpecificDetectionFn(gpu->vendor.chars, &detectFn, &dllName))
         {
             FF_DEBUG("Calling driver-specific detection function for vendor: %s, DLL: %s", gpu->vendor.chars, dllName);
-            const char* error = detectFn(
+            FF_MAYBE_UNUSED const char* error = detectFn(
                 &(FFGpuDriverCondition) {
                     .type = (deviceId > 0 ? FF_GPU_DRIVER_CONDITION_TYPE_DEVICE_ID : 0)
                             | (adapterLuid > 0 ? FF_GPU_DRIVER_CONDITION_TYPE_LUID : 0)