diff --git a/source/blender/compositor/intern/evaluator.cc b/source/blender/compositor/intern/evaluator.cc
index fdae3b3a31b..4e7101c267d 100644
--- a/source/blender/compositor/intern/evaluator.cc
+++ b/source/blender/compositor/intern/evaluator.cc
@@ -162,7 +162,7 @@ void Evaluator::map_node_operation_inputs_to_their_results(DNode node,
 
 /* Create one of the concrete subclasses of the PixelOperation based on the context and compile
  * state. Deleting the operation is the caller's responsibility. */
-PixelOperation *create_pixel_operation(Context &context, CompileState &compile_state)
+static PixelOperation *create_pixel_operation(Context &context, CompileState &compile_state)
 {
   const Schedule &schedule = compile_state.get_schedule();
   PixelCompileUnit &compile_unit = compile_state.get_pixel_compile_unit();