diff --git a/modules/util/acspo_validate.py b/modules/util/acspo_validate.py
index 17c59a68e520db7c13c21df3c4716024490ed70b..b8b896680cc3c958191cbb04e86ef93e66091ff1 100644
--- a/modules/util/acspo_validate.py
+++ b/modules/util/acspo_validate.py
@@ -57,8 +57,8 @@ def acspo_validate(oper_file, cspp_file):
     print(np.size(lon_cspp), np.size(lon_oper))
     print(np.size(lat_cspp), np.size(lat_oper))
 
-    print(np.sum(np.isclose(lon_cspp, lon_oper)))
-    print(np.sum(np.isclose(lat_cspp, lat_oper)))
+    print(np.sum(np.isclose(lon_cspp, lon_oper, rtol=0.001)))
+    print(np.sum(np.isclose(lat_cspp, lat_oper, rtol=0.001)))
 
     sst_cspp = sst_cspp[start_idx_cspp:stop_idx_cspp, :].flatten()
     sst_oper = sst_oper[start_idx_oper:stop_idx_oper, :].flatten()