diff --git a/nf_core/pipeline-template/bin/check_samplesheet.py b/nf_core/pipeline-template/bin/check_samplesheet.py
index 6e778747c..11b155723 100755
--- a/nf_core/pipeline-template/bin/check_samplesheet.py
+++ b/nf_core/pipeline-template/bin/check_samplesheet.py
@@ -159,7 +159,7 @@ def sniff_format(handle):
     handle.seek(0)
     sniffer = csv.Sniffer()
     if not sniffer.has_header(peek):
-        logger.critical(f"The given sample sheet does not appear to contain a header.")
+        logger.critical("The given sample sheet does not appear to contain a header.")
         sys.exit(1)
     dialect = sniffer.sniff(peek)
     return dialect