1 files changed, 3 insertions, 1 deletions
diff --git a/source/blender/compositor/intern/COM_ConstantFolder.cc b/source/blender/compositor/intern/COM_ConstantFolder.cc
index 5b48ff8fc08..445a9ce7433 100644
--- a/source/blender/compositor/intern/COM_ConstantFolder.cc
+++ b/source/blender/compositor/intern/COM_ConstantFolder.cc
@@ -44,7 +44,9 @@ static bool is_constant_foldable(NodeOperation *operation)
 {
   if (operation->get_flags().can_be_constant && !operation->get_flags().is_constant_operation) {
     for (int i = 0; i < operation->getNumberOfInputSockets(); i++) {
-      if (!operation->get_input_operation(i)->get_flags().is_constant_operation) {
+      NodeOperation *input = operation->get_input_operation(i);
+      if (!input->get_flags().is_constant_operation ||
+          !static_cast<ConstantOperation *>(input)->can_get_constant_elem()) {
         return false;
       }
     }