diff --git a/configs/ap143_defconfig b/configs/ap143_defconfig
index b902657..96a86b6 100644
--- a/configs/ap143_defconfig
+++ b/configs/ap143_defconfig
@@ -13,6 +13,7 @@
 CONFIG_SYS_LOAD_ADDR=0x81000000
 CONFIG_ARCH_ATH79=y
 CONFIG_TARGET_AP143=y
+CONFIG_SYS_MIPS_TIMER_FREQ=325000000
 CONFIG_DEBUG_UART=y
 CONFIG_SYS_MEMTEST_START=0x80100000
 CONFIG_SYS_MEMTEST_END=0x83f00000