diff --git a/Texassemble/texassemble.cpp b/Texassemble/texassemble.cpp
index eef1bac..4fe814f 100644
--- a/Texassemble/texassemble.cpp
+++ b/Texassemble/texassemble.cpp
@@ -62,7 +62,7 @@ using Microsoft::WRL::ComPtr;
 
 namespace
 {
-    enum COMMANDS
+    enum COMMANDS : uint32_t
     {
         CMD_CUBE = 1,
         CMD_VOLUME,
diff --git a/Texdiag/texdiag.cpp b/Texdiag/texdiag.cpp
index 019782a..1a0f428 100644
--- a/Texdiag/texdiag.cpp
+++ b/Texdiag/texdiag.cpp
@@ -55,7 +55,7 @@
 
 using namespace DirectX;
 
-enum COMMANDS
+enum COMMANDS : uint32_t
 {
     CMD_INFO = 1,
     CMD_ANALYZE,