diff --git a/glslang/MachineIndependent/reflection.cpp b/glslang/MachineIndependent/reflection.cpp
index 769466083b..55caa1f447 100644
--- a/glslang/MachineIndependent/reflection.cpp
+++ b/glslang/MachineIndependent/reflection.cpp
@@ -92,8 +92,8 @@ class TReflectionTraverser : public TIntermTraverser {
         if (processedDerefs.find(&base) == processedDerefs.end()) {
             processedDerefs.insert(&base);
 
-            uint32_t blockIndex = -1;
-            uint32_t offset     = -1;
+            int blockIndex = -1;
+            int offset     = -1;
             TList<TIntermBinary*> derefs;
             TString baseName = base.getName();