diff --git a/src/argv/ntapi_tt_argv_envp.c b/src/argv/ntapi_tt_argv_envp.c
index 586393e..520254d 100644
--- a/src/argv/ntapi_tt_argv_envp.c
+++ b/src/argv/ntapi_tt_argv_envp.c
@@ -360,7 +360,7 @@ int32_t __stdcall __ntapi_tt_get_argv_envp_utf16(
 	if (status) return status;
 
 	/* argv[] needs a terminating null pointer */
-	if (main_params->argc == main_params->argv_envp_ptr_total)
+	if ((unsigned)main_params->argc == main_params->argv_envp_ptr_total)
 		return NT_STATUS_BUFFER_TOO_SMALL;
 
 	/* set idx to the envp[0] array index */