diff --git a/console/migrations/m151013_062829_deletePrefixFunction.php b/console/migrations/m151013_062829_deletePrefixFunction.php
index a21c63f..fb7cc1d 100644
--- a/console/migrations/m151013_062829_deletePrefixFunction.php
+++ b/console/migrations/m151013_062829_deletePrefixFunction.php
@@ -40,11 +40,19 @@ SQL;
 
     public function safedown()
     {
-        $sql =
-            'drop FUNCTION IF EXIST FindPrefix;
-             drop FUNCTION IF EXIST DeletePrefix;';
 
-        $this->execute($sql);
+        $find_prefix = <<< SQL
+               drop FUNCTION FindPrefix;
+SQL;
+
+        $delete_prefix = <<< SQL
+                drop FUNCTION DeletePrefix;
+SQL;
+
+        $this->execute($find_prefix);
+        $this->execute($delete_prefix);
+
+
     }
 
 
--
libgit2 0.21.4