diff --git a/renderdoc/driver/shaders/dxbc/dx_debug.h b/renderdoc/driver/shaders/dxbc/dx_debug.h
index 68cb8e58b..13f1979e2 100644
--- a/renderdoc/driver/shaders/dxbc/dx_debug.h
+++ b/renderdoc/driver/shaders/dxbc/dx_debug.h
@@ -29,14 +29,14 @@
 
 namespace DXBC
 {
-enum ResourceRetType;
+enum ResourceRetType : uint8_t;
 enum class InterpolationMode : uint8_t;
 class DXBCContainer;
 };
 
 namespace DXBCBytecode
 {
-enum ResourceDimension;
+enum ResourceDimension : uint8_t;
 enum SamplerMode;
 };