diff --git a/boards/nucleo-l552ze-q/include/periph_conf.h b/boards/nucleo-l552ze-q/include/periph_conf.h
index f2331145a8..9f44d2e0de 100644
--- a/boards/nucleo-l552ze-q/include/periph_conf.h
+++ b/boards/nucleo-l552ze-q/include/periph_conf.h
@@ -19,12 +19,6 @@
 #ifndef PERIPH_CONF_H
 #define PERIPH_CONF_H
 
-/* Add specific clock configuration (HSE, LSE) for this board here */
-/* Reach 108MHz by default by setting custom PLL_N factor */
-#ifndef CONFIG_CLOCK_PLL_N
-#define CONFIG_CLOCK_PLL_N              27
-#endif
-
 /* Add specific clock configuration (HSE, LSE) for this board here */
 #ifndef CONFIG_BOARD_HAS_LSE
 #define CONFIG_BOARD_HAS_LSE            1