diff --git a/src/kernel/libroot/posix/time/Jamfile b/src/kernel/libroot/posix/time/Jamfile
index 97c93e870e..b3f92bc10d 100644
--- a/src/kernel/libroot/posix/time/Jamfile
+++ b/src/kernel/libroot/posix/time/Jamfile
@@ -1,12 +1,13 @@
 SubDir OBOS_TOP src kernel libroot posix time ;
 
 KernelMergeObject posix_time.o :
-	<$(SOURCE_GRIST)>asctime.c
-	<$(SOURCE_GRIST)>ctime.c
-	<$(SOURCE_GRIST)>difftime.c
-	<$(SOURCE_GRIST)>localtime.c
-	<$(SOURCE_GRIST)>mktime.c
-	<$(SOURCE_GRIST)>strftime.cpp
-	<$(SOURCE_GRIST)>time.c
+	asctime.c
+	ctime.c
+	difftime.c
+	localtime.c
+	mktime.c
+	strftime.cpp
+	time.c
+	tzset.c
 	: -fPIC -DPIC
 	;
diff --git a/src/kernel/libroot/posix/time/tzset.c b/src/kernel/libroot/posix/time/tzset.c
new file mode 100644
index 0000000000..5391500055
--- /dev/null
+++ b/src/kernel/libroot/posix/time/tzset.c
@@ -0,0 +1,21 @@
+/*
+** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the Haiku License.
+*/
+
+
+#include <time.h>
+
+
+char *tzname[2];
+
+
+void
+tzset(void)
+{
+	// ToDo: implement me properly!
+
+	tzname[0] = "std";
+	tzname[0] = "dst";
+}
+