diff --git a/hash.c b/hash.c
index 4e3cf9974a..4ead5862cc 100644
--- a/hash.c
+++ b/hash.c
@@ -1217,12 +1217,6 @@ env_delete_if()
     return envtbl;
 }
 
-static VALUE
-env_reject()
-{
-    return rb_hash_delete_if(env_to_hash());
-}
-
 static VALUE
 env_to_s()
 {
@@ -1361,6 +1355,12 @@ env_to_hash()
     return hash;
 }
 
+static VALUE
+env_reject()
+{
+    return rb_hash_delete_if(env_to_hash());
+}
+
 void
 Init_Hash()
 {