diff --git a/source/blender/makesrna/intern/rna_access.cc b/source/blender/makesrna/intern/rna_access.cc
index 43413571ef8..75255dfdd7b 100644
--- a/source/blender/makesrna/intern/rna_access.cc
+++ b/source/blender/makesrna/intern/rna_access.cc
@@ -3340,6 +3340,10 @@ void RNA_property_string_get(PointerRNA *ptr, PropertyRNA *prop, char *value)
 char *RNA_property_string_get_alloc(
     PointerRNA *ptr, PropertyRNA *prop, char *fixedbuf, int fixedlen, int *r_len)
 {
+  if (fixedbuf) {
+    BLI_string_debug_size(fixedbuf, fixedlen);
+  }
+
   char *buf;
   int length;