diff --git a/src/QueryReflection/QueryReflection.php b/src/QueryReflection/QueryReflection.php
index 9b749804..97207ce7 100644
--- a/src/QueryReflection/QueryReflection.php
+++ b/src/QueryReflection/QueryReflection.php
@@ -344,6 +344,12 @@ private function resolveQueryExpr(Expr $queryExpr, Scope $scope): ?string
      */
     private function resolveQueryStringExpr(Expr $queryExpr, Scope $scope, bool $resolveVariables = true): ?string
     {
+        $type = $scope->getType($queryExpr);
+        $constStrings = $type->getConstantStrings();
+        if (count($constStrings) === 1) {
+            return QuerySimulation::simulateParamValueType($constStrings[0], false);
+        }
+
         if (true === $resolveVariables && $queryExpr instanceof Expr\Variable) {
             $finder = new ExpressionFinder();
             // atm we cannot reason about variables which are manipulated via assign ops
@@ -399,8 +405,6 @@ private function resolveQueryStringExpr(Expr $queryExpr, Scope $scope, bool $res
             return $string;
         }
 
-        $type = $scope->getType($queryExpr);
-
         return QuerySimulation::simulateParamValueType($type, false);
     }