diff --git a/src/primingprob/cli_priming_prob.py b/src/primingprob/cli_priming_prob.py
index d737e1c8053e40703677470077f72969b3b77623..6bbac4e9967eaea53c97722be194cfee7db52244 100644
--- a/src/primingprob/cli_priming_prob.py
+++ b/src/primingprob/cli_priming_prob.py
@@ -4,7 +4,7 @@ import logging
 import os
 from pathlib import Path
 import sys
-from src.primingprob.priming_prob import Probability as Pbt  # type: ignore
+from src.primingprob.priming_prob import inter_para, inter_prob  # type: ignore
 
 
 def parse_args():  # Input arguments
@@ -50,8 +50,8 @@ def main():
     if os.path.exists(args.input_file) and os.path.exists(args.fasta_file):  # pragma: no cover
         logging.basicConfig(level=logging.INFO, format='%(message)s')
         logging.info("Starting calculating the priming probabilities...")
-        paradata = Pbt.inter_para(args.input_file)
-        Pbt.inter_prob(paradata, args.fasta_file, args.output_file)
+        paradata = inter_para(args.input_file)
+        inter_prob(paradata, args.fasta_file, args.output_file)
         logging.info("Calculations are done...")
         logging.info(f"Potential Priming Sites are saved in {args.output_file}")