diff --git a/source/blender/makesrna/intern/rna_pose.cc b/source/blender/makesrna/intern/rna_pose.cc
index 92eab7f3f21..d208667f440 100644
--- a/source/blender/makesrna/intern/rna_pose.cc
+++ b/source/blender/makesrna/intern/rna_pose.cc
@@ -651,6 +651,7 @@ void rna_Pose_custom_shape_set(PointerRNA *ptr, PointerRNA value, struct ReportL
   Object *custom_shape = static_cast<Object *>(value.data);
 
   if (!custom_shape) {
+    id_us_min(reinterpret_cast<ID *>(pchan->custom));
     pchan->custom = nullptr;
     return;
   }
@@ -663,7 +664,9 @@ void rna_Pose_custom_shape_set(PointerRNA *ptr, PointerRNA value, struct ReportL
     return;
   }
 
+  id_us_min(reinterpret_cast<ID *>(pchan->custom));
   pchan->custom = custom_shape;
+  id_us_plus(reinterpret_cast<ID *>(pchan->custom));
 }
 
 bool rna_Pose_custom_shape_object_poll(PointerRNA * /*ptr*/, PointerRNA value)