diff --git a/cscs-checks/tools/io/cdo.py b/cscs-checks/tools/io/cdo.py
index 207ed5d25b..5b3d81cd02 100644
--- a/cscs-checks/tools/io/cdo.py
+++ b/cscs-checks/tools/io/cdo.py
@@ -110,8 +110,8 @@ def __init__(self):
         # TODO: Add here also Warning? then it fails currently...
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'info: Processed 5 variables over 1 timestep',
-                            self.stderr)
+            sn.assert_found(r'info: Processed( 688128 values from)? '
+                            r'5 variables over 1 timestep', self.stderr)
         ])
 
 
@@ -126,8 +126,8 @@ def __init__(self):
         # TODO: fails currently with the file test_hgroups.nc4
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'info: Processed 3 variables over 8 timestep', 
-                            self.stderr)
+            sn.assert_found(r'info: Processed( 442368 values from)? '
+                            r'3 variables over 8 timestep', self.stderr)
         ])
 
 
@@ -141,8 +141,8 @@ def __init__(self):
             'info', 'test_echam_spectral-deflated_wind10_wl_ws.nc4c']
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'info: Processed 3 variables over 8 timestep',
-                            self.stderr)
+            sn.assert_found(r'info: Processed( 442368 values from)? '
+                            r'3 variables over 8 timestep', self.stderr)
         ])
 
 
@@ -161,8 +161,8 @@ def __init__(self):
         ]
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'merge: Processed 3 variables over 3 timesteps?',
-                            self.stderr)
+            sn.assert_found(r'merge: Processed( 98304 values from)? '
+                            r'3 variables', self.stderr)
         ])
 
 
@@ -181,8 +181,8 @@ def __init__(self):
         ]
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'merge: Processed 3 variables over 24 timesteps?',
-                            self.stderr)
+            sn.assert_found(r'merge: Processed( 442368 values from)? '
+                            r'3 variables', self.stderr)
         ])
 
 
@@ -202,6 +202,6 @@ def __init__(self):
         ]
         self.sanity_patterns = sn.all([
             sn.assert_not_found(r'(?i)unsupported|error', self.stderr),
-            sn.assert_found(r'merge: Processed 3 variables over 24 timesteps?',
-                            self.stderr)
-        ])
\ No newline at end of file
+            sn.assert_found(r'merge: Processed( 442368 values from)? '
+                            r'3 variables', self.stderr)
+        ])