diff --git a/samplesheetutils/binaries/create_samplesheet.py b/samplesheetutils/binaries/create_samplesheet.py
index a21d36d..c601f01 100644
--- a/samplesheetutils/binaries/create_samplesheet.py
+++ b/samplesheetutils/binaries/create_samplesheet.py
@@ -206,7 +206,7 @@ def create_samplesheet():
         # Create the fasta file
         sample_data = Sample(aa_sample_name, aa_path, args.aa_string)
         with open(aa_sample_file_name, "w") as s_fp:
-            create_sample_rfaa(sample_data, s_fp)
+            create_yaml_rfaa(sample_data, s_fp)
 
         samplesheet_path = args.output_file