diff --git a/include/ntapi/nt_process.h b/include/ntapi/nt_process.h
index ea8dea5..d7eac2b 100644
--- a/include/ntapi/nt_process.h
+++ b/include/ntapi/nt_process.h
@@ -231,6 +231,7 @@ typedef enum _nt_process_opcode_idx {
 
 /* nt_runtime_data flag bits */
 #define NT_RUNTIME_DATA_INTEGRAL_PROCESS			(0x01)
+#define NT_RUNTIME_DATA_SEH_TRAP				(0x02)
 
 /* runtime data convenience storage */
 #define NT_RUNTIME_DATA_SYNC_OPCODES				(0x08)