diff --git a/include/winerror.h b/include/winerror.h
index eaad982e14b..20f443cf87e 100644
--- a/include/winerror.h
+++ b/include/winerror.h
@@ -2268,6 +2268,7 @@
 #define TRUST_E_ACTION_UNKNOWN                             _HRESULT_TYPEDEF_(0x800B0002L)
 #define TRUST_E_SUBJECT_FORM_UNKNOWN                       _HRESULT_TYPEDEF_(0x800B0003L)
 #define TRUST_E_SUBJECT_NOT_TRUSTED                        _HRESULT_TYPEDEF_(0x800B0004L)
+#define TRUST_E_NOSIGNATURE                                _HRESULT_TYPEDEF_(0x800B0100L)
 
 #define SPAPI_E_EXPECTED_SECTION_NAME                      _HRESULT_TYPEDEF_(0x800F0000L)
 #define SPAPI_E_BAD_SECTION_NAME_LINE                      _HRESULT_TYPEDEF_(0x800F0001L)