diff --git a/tests.sh b/tests.sh
index 8c269ad..ed95601 100755
--- a/tests.sh
+++ b/tests.sh
@@ -45,13 +45,15 @@ f_compare_version(){
 f_test_nano_version() {
   local version
   version="$(nano --version | cut -d ' ' -f 4)"
-  return "$(f_compare_version $G_NANO_VERSION $version)"
+  f_compare_version "$G_NANO_VERSION "$version"
+  return $?
 }
 
 f_test_shellcheck_version() {
   local version
   version="$(nano --version | cut -d ' ' -f 8)"
-  return "$(f_compare_version $G_SHELLCHECK_VERSION $version)"
+  f_compare_version "$G_SHELLCHECK_VERSION" "$version"
+  return $?
 }
 
 printf "#################\n"