diff --git a/lib/cartodb/controllers/base.js b/lib/cartodb/controllers/base.js
index 52251602..b402b412 100644
--- a/lib/cartodb/controllers/base.js
+++ b/lib/cartodb/controllers/base.js
@@ -249,11 +249,9 @@ function statusFromErrorMessage(errMsg) {
     else if (errMsg.match(/Postgis Plugin.*[\s|\n].*column.*does not exist/)) {
         statusCode = 400;
     }
-    else if ( -1 !== errMsg.indexOf('does not exist') ) {
+    else if ( -1 !== errMsg.indexOf('does not exist') && !errMsg.match(/function .* does not exist/ ) ) {
         if ( -1 !== errMsg.indexOf(' role ') ) {
             statusCode = 403; // role 'xxx' does not exist
-        } else if ( errMsg.match(/function .* does not exist/) ) {
-            statusCode = 400; // SQL error
         } else {
             statusCode = 404;
         }