diff --git a/global/src/sketch.c b/global/src/sketch.c
index 79dd477b5..3fd7d59e4 100644
--- a/global/src/sketch.c
+++ b/global/src/sketch.c
@@ -438,4 +438,5 @@ int pnga_sprs_array_num_nonzeros(Integer g_a)
     }
   }
   pnga_pgroup_gop(GA[handle].p_handle,type,&cnt,nprocs,"+");
+  return cnt;
 }