diff --git a/aliases b/aliases
index 99caabf..a2dcc2a 100644
--- a/aliases
+++ b/aliases
@@ -8,7 +8,7 @@ alias b="bundle"
 alias be="bundle exec"
 alias bea="bundle exec rails"
 alias ber="bundle exec rake"
-alias bet="bundle exec rspec"
+alias bet="test-rails"
 alias betd="bundle exec rspec --format documentation"
 alias c="clear"
 alias dc="docker-compose"
diff --git a/functions b/functions
index 7ee86ce..1ff6124 100644
--- a/functions
+++ b/functions
@@ -103,6 +103,14 @@ function stopwatch {
    done
 }
 
+function test-rails {
+  if bundle exec rspec --help > /dev/null 2>&1; then
+    bundle exec rspec
+  else
+    bundle exec rails test
+  fi
+}
+
 function yarn-exec {
   (PATH=$(yarn bin):$PATH; eval $@;)
 }