diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 347f4391db8d..0b2b55a79c3c 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -878,7 +878,7 @@ CONFIG_HVCS=m
 #
 # CONFIG_WATCHDOG is not set
 # CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
+CONFIG_GEN_RTC=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set