1 files changed, 2 insertions, 2 deletions

diff --git a/src/engine/variable.h b/src/engine/variable.h
index 713fe6e3..a38c9daa 100644
--- a/src/engine/variable.h
+++ b/src/engine/variable.h
@@ -126,13 +126,13 @@ HRESULT VariableFormatString(
     __in BURN_VARIABLES* pVariables,
     __in_z LPCWSTR wzIn,
     __out_z_opt LPWSTR* psczOut,
-    __out_opt DWORD* pcchOut
+    __out_opt SIZE_T* pcchOut
     );
 HRESULT VariableFormatStringObfuscated(
     __in BURN_VARIABLES* pVariables,
     __in_z LPCWSTR wzIn,
     __out_z_opt LPWSTR* psczOut,
-    __out_opt DWORD* pcchOut
+    __out_opt SIZE_T* pcchOut
     );
 HRESULT VariableEscapeString(
     __in_z LPCWSTR wzIn,