diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index 3a76d28..d6fe131 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -200,6 +200,7 @@
 				drivers/st/iwdg/stm32_iwdg.c				\
 				drivers/st/pmic/stm32mp_pmic.c				\
 				drivers/st/pmic/stpmic1.c				\
+				drivers/st/regulator/regulator_core.c			\
 				drivers/st/reset/stm32mp1_reset.c			\
 				plat/st/common/stm32mp_dt.c				\
 				plat/st/stm32mp1/stm32mp1_dbgmcu.c			\
diff --git a/plat/st/stm32mp1/stm32mp1_def.h b/plat/st/stm32mp1/stm32mp1_def.h
index f5d4b2f..ee1644c 100644
--- a/plat/st/stm32mp1/stm32mp1_def.h
+++ b/plat/st/stm32mp1/stm32mp1_def.h
@@ -461,6 +461,12 @@
 #define SYSCFG_BASE			U(0x50020000)
 
 /*******************************************************************************
+ * REGULATORS
+ ******************************************************************************/
+/* 3 PWR + 1 VREFBUF + 14 PMIC regulators + 1 FIXED */
+#define PLAT_NB_RDEVS			U(19)
+
+/*******************************************************************************
  * Device Tree defines
  ******************************************************************************/
 #define DT_BSEC_COMPAT			"st,stm32mp15-bsec"