diff --git a/prime.clj/src/prime/clj.clj b/prime.clj/src/prime/clj.clj
index e1ccbc2aab99cc3210968cbc9f2ac3e83d968f73..50ccf6629a35d49144586570fd900b038837b277 100644
--- a/prime.clj/src/prime/clj.clj
+++ b/prime.clj/src/prime/clj.clj
@@ -4,11 +4,11 @@
 (require '[clojure.math.numeric-tower :as math])
 
 (defn prime? [x]
-  (cond
+  (if
     (integer? (math/sqrt x)) false
-    :else (every?
-            (fn [y] (not= (mod x y) 0))
-            (range 2 (math/ceil (math/sqrt x))))))
+    (every?
+       (fn [y] (not= (mod x y) 0))
+       (range 2 (math/ceil (math/sqrt x))))))
 
 
 (defn -main