diff --git a/run_tests.sh b/run_tests.sh
index dc1e3d79..472a266c 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -126,10 +126,19 @@ fix_retransmissions() {
         if ! [ -a "${next_json_file}" ] ; then
           continue
         fi
+        # Check if both sip_in and Sip_out are equals
         if ( diff -q -u <(tail -n3 "${json_file}") <(tail -n3 "${next_json_file}") &> /dev/null ) ; then
-          echo "$(date) - - - $(basename "${next_json_file}") seems a retransmission of $(basename "${json_file}") ---> renaming the file in $(basename "${next_json_file}")_retransmission"
+          echo "$(date) - - - $(basename "${next_json_file}") seems a retransmission of $(basename "${json_file}") (case 1) ---> renaming the file in $(basename "${next_json_file}")_retransmission"
           mv -f "${next_json_file}" "${next_json_file}_retransmission"
           RETRANS_ISSUE=true
+          continue
+        fi
+        # Check if only sip_in is equal
+        if ( diff -q -u <(tail -n3 "${json_file}" | sed -n 1p) <(tail -n3 "${next_json_file}" | sed -n 1p) &> /dev/null ) ; then
+          echo "$(date) - - - $(basename "${next_json_file}") seems a retransmission of $(basename "${json_file}") (case 2) ---> renaming the file in $(basename "${next_json_file}")_retransmission"
+          mv -f "${next_json_file}" "${next_json_file}_retransmission"
+          RETRANS_ISSUE=true
+          continue
         fi
       done
     done