diff --git a/hpctestlib/microbenchmarks/gpu/memory_bandwidth/__init__.py b/hpctestlib/microbenchmarks/gpu/memory_bandwidth/__init__.py
index 4198f8f399..10d0330d57 100644
--- a/hpctestlib/microbenchmarks/gpu/memory_bandwidth/__init__.py
+++ b/hpctestlib/microbenchmarks/gpu/memory_bandwidth/__init__.py
@@ -144,7 +144,7 @@ def _xfer_pattern(self, xfer_kind):
 
         # Extract the bandwidth corresponding to the right node, transfer and
         # device.
-        return (rf'^[^,]*\[[^\]]*\]\s*{direction}\s*bandwidth on device'
+        return (rf'^\[[^\]]*\]\s*{direction}\s*bandwidth on device'
                 r' \d+ is \s*(\S+)\s*GB/s.')
 
 
@@ -179,6 +179,6 @@ def set_perf_patterns(self):
         '''
         self.perf_patterns = {
             'bw': sn.min(sn.extractall(
-                r'^[^,]*\[[^\]]*\]\s+GPU\s+\d+\s+(\s*\d+.\d+\s)+',
+                r'^\[[^\]]*\]\s+GPU\s+\d+\s+(\s*\d+.\d+\s)+',
                 self.stdout, 1, float))
         }