diff --git a/src/kernel/libroot/posix/unistd/open.c b/src/kernel/libroot/posix/unistd/open.c
index 001b4abb59..bd25309dc7 100644
--- a/src/kernel/libroot/posix/unistd/open.c
+++ b/src/kernel/libroot/posix/unistd/open.c
@@ -1,10 +1,11 @@
-/* 
-** Copyright 2002-2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
-**
-** Copyright 2001, Manuel J. Petit. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
+/*
+ * Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2001, Manuel J. Petit. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+ */
+
 
 #include <stdarg.h>
 #include <unistd.h>
@@ -14,11 +15,15 @@
 #include <syscalls.h>
 
 
+extern mode_t __gUmask;
+	// declared in sys/umask.c
+
+
 int
 creat(const char *path, mode_t mode)
 {
-	int status = _kern_create(path, O_CREAT | O_TRUNC | O_WRONLY, mode);
-	
+	int status = _kern_open(-1, path, O_CREAT | O_TRUNC | O_WRONLY, mode & ~__gUmask);
+		// adapt the permissions as required by POSIX
 	if (status < 0) {
 		errno = status;
 		return -1;
@@ -28,21 +33,20 @@ creat(const char *path, mode_t mode)
 
 
 int
-open(const char *path, int oflags, ...)
+open(const char *path, int openMode, ...)
 {
 	int status;
-	int perms;
+	int perms = 0;
 	va_list args;
 
-	va_start(args, oflags);
-	perms = va_arg(args,int);
-	va_end(args);
-
-	if (oflags & O_CREAT)
-		status = _kern_create(path, oflags, perms);
-	else
-		status = _kern_open(-1, path, oflags);
+	if (openMode & O_CREAT) {
+		va_start(args, openMode);
+		perms = va_arg(args, int) & ~__gUmask;
+			// adapt the permissions as required by POSIX
+		va_end(args);
+	}
 
+	status = _kern_open(-1, path, openMode, perms);
 	if (status < 0) {
 		errno = status;
 		return -1;