diff --git a/has b/has
index b2eac08..62c6952 100755
--- a/has
+++ b/has
@@ -75,6 +75,7 @@ __detect(){
     python|python3)         __dynamic_detect--version ${command} ;;
     perl|php|php5)          __dynamic_detect--version ${command} ;;
     groovy|gradle|mvn)      __dynamic_detect--version ${command} ;;
+    lein)                   __dynamic_detect--version ${command} ;;
 
     # commands that need -version flag
     ant|java|javac)         __dynamic_detect-version ${command} ;;