diff --git a/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp b/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
index f6cf85e44b6..a547c201f58 100644
--- a/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
+++ b/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
@@ -45,7 +45,7 @@ using namespace Freestyle;
 
 #include "DEG_depsgraph_query.h"
 
-#include "pipeline.h"
+#include "pipeline.hh"
 
 #include "FRS_freestyle.h"
 
diff --git a/source/blender/render/CMakeLists.txt b/source/blender/render/CMakeLists.txt
index e6ff43d215f..9c417bb812c 100644
--- a/source/blender/render/CMakeLists.txt
+++ b/source/blender/render/CMakeLists.txt
@@ -47,7 +47,7 @@ set(SRC
   RE_texture.h
   RE_texture_margin.h
 
-  intern/pipeline.h
+  intern/pipeline.hh
   intern/render_result.h
   intern/render_types.h
   intern/texture_common.h
diff --git a/source/blender/render/intern/engine.cc b/source/blender/render/intern/engine.cc
index 04b0da6acad..f70558bf3bd 100644
--- a/source/blender/render/intern/engine.cc
+++ b/source/blender/render/intern/engine.cc
@@ -50,7 +50,7 @@
 
 #include "WM_api.h"
 
-#include "pipeline.h"
+#include "pipeline.hh"
 #include "render_result.h"
 #include "render_types.h"
 
diff --git a/source/blender/render/intern/initrender.cc b/source/blender/render/intern/initrender.cc
index 591791587fe..05bf9f220f9 100644
--- a/source/blender/render/intern/initrender.cc
+++ b/source/blender/render/intern/initrender.cc
@@ -24,7 +24,7 @@
 #include "BKE_camera.h"
 
 /* this module */
-#include "pipeline.h"
+#include "pipeline.hh"
 #include "render_types.h"
 
 /* ****************** MASKS and LUTS **************** */
diff --git a/source/blender/render/intern/pipeline.cc b/source/blender/render/intern/pipeline.cc
index 131db2cb099..0f577eab665 100644
--- a/source/blender/render/intern/pipeline.cc
+++ b/source/blender/render/intern/pipeline.cc
@@ -90,7 +90,7 @@
 #endif
 
 /* internal */
-#include "pipeline.h"
+#include "pipeline.hh"
 #include "render_result.h"
 #include "render_types.h"
 
diff --git a/source/blender/render/intern/pipeline.h b/source/blender/render/intern/pipeline.h
deleted file mode 100644
index aa56647d029..00000000000
--- a/source/blender/render/intern/pipeline.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later
- * Copyright 2006 Blender Foundation */
-
-/** \file
- * \ingroup render
- */
-
-#pragma once
-
-struct Render;
-struct RenderData;
-struct RenderLayer;
-struct RenderResult;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct RenderLayer *render_get_single_layer(struct Render *re, struct RenderResult *rr);
-void render_copy_renderdata(struct RenderData *to, struct RenderData *from);
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/source/blender/render/intern/pipeline.hh b/source/blender/render/intern/pipeline.hh
new file mode 100644
index 00000000000..f74c73373ba
--- /dev/null
+++ b/source/blender/render/intern/pipeline.hh
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2006 Blender Foundation */
+
+/** \file
+ * \ingroup render
+ */
+
+#pragma once
+
+struct Render;
+struct RenderData;
+struct RenderLayer;
+struct RenderResult;
+
+RenderLayer *render_get_single_layer(Render *re, RenderResult *rr);
+void render_copy_renderdata(RenderData *to, RenderData *from);