diff --git a/Types/HttpQuery.php b/Types/HttpQuery.php
index bcfe54a..92b2a01 100644
--- a/Types/HttpQuery.php
+++ b/Types/HttpQuery.php
@@ -70,7 +70,9 @@ public static function createConditionals(array $tokens) {
 
         // Get WHERE conditions as string including table alias and primary key column if present
         $sqlWhereString = array_reduce($tokens['WHERE'], function($query, $token) use ($tableAlias) {
-            return $query . str_replace(['"', '\''], '', str_replace('OR', '|', str_replace('AND', '&', $token['base_expr'])));
+            $baseExpr = str_replace(['"', '\''], '', str_replace('OR', '|', str_replace('AND', '&', $token['base_expr'])));
+
+            return $query . ($token['expr_type'] == 'const' ? urlencode($baseExpr) : $baseExpr);
         });
 
         // Remove primary key column before removing table alias and returning