From c5e43a80a8755bcebd4902ffbec6b60d0ed23aab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ole=20Sch=C3=BCtt?= <ole.schuett@cp2k.org>
Date: Sat, 20 Jun 2026 19:10:57 +0200
Subject: [PATCH] Grid: Fix CUDA build (#5416)

---
 src/grid/gpu/grid_gpu_internal_header.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/grid/gpu/grid_gpu_internal_header.h b/src/grid/gpu/grid_gpu_internal_header.h
index 004ae4ce2f..8c6a8186e6 100644
--- a/src/grid/gpu/grid_gpu_internal_header.h
+++ b/src/grid/gpu/grid_gpu_internal_header.h
@@ -32,7 +32,7 @@ extern "C" {
 
 namespace rocm_backend {
 
-#if defined(__HIP_PLATFORM_NVIDIA__)
+#if defined(__OFFLOAD_CUDA) || defined(__HIP_PLATFORM_NVIDIA__)
 #if __CUDA_ARCH__ < 600
 __device__ __inline__ double atomicAdd(double *address, double val) {
   unsigned long long int *address_as_ull = (unsigned long long int *)address;