diff --git a/source/blender/editors/space_outliner/tree/tree_element_rna.cc b/source/blender/editors/space_outliner/tree/tree_element_rna.cc
index b940054f10f..ec455973d90 100644
--- a/source/blender/editors/space_outliner/tree/tree_element_rna.cc
+++ b/source/blender/editors/space_outliner/tree/tree_element_rna.cc
@@ -224,13 +224,14 @@ TreeElementRNAArrayElement::TreeElementRNAArrayElement(TreeElement &legacy_te,
   char c = RNA_property_array_item_char(TreeElementRNAArrayElement::get_property_rna(), index);
 
   const size_t name_size = sizeof(char[20]);
-  legacy_te_.name = MEM_calloc_arrayN<char>(name_size, "OutlinerRNAArrayName");
+  char *name = MEM_calloc_arrayN<char>(name_size, "OutlinerRNAArrayName");
   if (c) {
-    BLI_snprintf_utf8((char *)legacy_te_.name, name_size, "  %c", c);
+    BLI_snprintf_utf8(name, name_size, "  %c", c);
   }
   else {
-    BLI_snprintf_utf8((char *)legacy_te_.name, name_size, "  %d", index + 1);
+    BLI_snprintf_utf8(name, name_size, "  %d", index + 1);
   }
+  legacy_te_.name = name;
   legacy_te_.flag |= TE_FREE_NAME;
 }