diff --git a/tedana/tests/test_integration.py b/tedana/tests/test_integration.py
index e8bb0c422..89cb3b105 100644
--- a/tedana/tests/test_integration.py
+++ b/tedana/tests/test_integration.py
@@ -37,8 +37,8 @@ def check_integration_outputs(fname, outpath):
 
     # Checks for log file
     log_regex = ('^tedana_'
-                 '[12][0-9]{3}-[0-9]{2}-[0-9]{2}T[0-9]{2}:'
-                 '[0-9]{2}:[0-9]{2}.tsv$')
+                 '[12][0-9]{3}-[0-9]{2}-[0-9]{2}T[0-9]{2}'
+                 '[0-9]{2}[0-9]{2}.tsv$')
     logfiles = [out for out in existing if re.match(log_regex, out)]
     assert len(logfiles) == 1
 
diff --git a/tedana/workflows/tedana.py b/tedana/workflows/tedana.py
index 4696f0a98..1fb809762 100644
--- a/tedana/workflows/tedana.py
+++ b/tedana/workflows/tedana.py
@@ -330,8 +330,8 @@ def tedana_workflow(data, tes, out_dir='.', mask=None,
     # create logfile name
     basename = 'tedana_'
     extension = 'tsv'
-    isotime = datetime.datetime.now().replace(microsecond=0).isoformat()
-    logname = op.join(out_dir, (basename + isotime + '.' + extension))
+    start_time = datetime.datetime.now().strftime('%Y-%m-%dT%H%M%S')
+    logname = op.join(out_dir, (basename + start_time + '.' + extension))
 
     # set logging format
     log_formatter = logging.Formatter(