1 files changed, 2 insertions, 2 deletions

diff --git a/src/engine/pseudobundle.h b/src/engine/pseudobundle.h
index 144f6880..4d3d3052 100644
--- a/src/engine/pseudobundle.h
+++ b/src/engine/pseudobundle.h
@@ -22,8 +22,8 @@ HRESULT PseudoBundleInitialize(
     __in_z_opt LPCWSTR wzRepairArguments,
     __in_z_opt LPCWSTR wzUninstallArguments,
     __in_opt BURN_DEPENDENCY_PROVIDER* pDependencyProvider,
-    __in_opt BYTE* pbHash,
-    __in DWORD cbHash
+    __in_opt const BYTE* pbHash,
+    __in const DWORD cbHash
     );
 HRESULT PseudoBundleInitializePassthrough(
     __in BURN_PACKAGE* pPassthroughPackage,