diff --git a/src/process/ntapi_tt_create_remote_process_params.c b/src/process/ntapi_tt_create_remote_process_params.c
index b365775..ac7e2d5 100644
--- a/src/process/ntapi_tt_create_remote_process_params.c
+++ b/src/process/ntapi_tt_create_remote_process_params.c
@@ -14,6 +14,8 @@
 #include <ntapi/ntapi.h>
 #include "ntapi_impl.h"
 
+#define __PROCESS_PARAMS_GUARD_PAGE_SIZE  (0x1000)
+
 int32_t	__stdcall __ntapi_tt_create_remote_process_params(
 	__in	void *				hprocess,
 	__out 	nt_process_parameters **	rprocess_params,
@@ -175,7 +177,8 @@ int32_t	__stdcall __ntapi_tt_create_remote_process_params(
 
 		/* store offset and update alloc_size */
 		d_environment = process_params.alloc_size;
-		process_params.alloc_size += (uint32_t)env_block_size + 0x1000;
+		process_params.alloc_size += (uint32_t)env_block_size;
+		process_params.alloc_size += __PROCESS_PARAMS_GUARD_PAGE_SIZE;
 		__ALIGN_ALLOC_SIZE;
 	}