diff --git a/drivers/periph_common/init.c b/drivers/periph_common/init.c
index 318f4194c1..3bb40b871d 100644
--- a/drivers/periph_common/init.c
+++ b/drivers/periph_common/init.c
@@ -26,6 +26,9 @@
 #ifdef MODULE_PERIPH_RTC
 #include "periph/rtc.h"
 #endif
+#ifdef MODULE_PERIPH_RTT
+#include "periph/rtt.h"
+#endif
 #ifdef MODULE_PERIPH_HWRNG
 #include "periph/hwrng.h"
 #endif
@@ -44,6 +47,11 @@ void periph_init(void)
     rtc_init();
 #endif
 
+    /* Initialize RTT */
+#ifdef MODULE_PERIPH_RTT
+    rtt_init();
+#endif
+
 #ifdef MODULE_PERIPH_HWRNG
     hwrng_init();
 #endif