diff --git a/cpu/stm32l1/include/cpu_conf.h b/cpu/stm32l1/include/cpu_conf.h
index 222e6e44c..ffaec459f 100644
--- a/cpu/stm32l1/include/cpu_conf.h
+++ b/cpu/stm32l1/include/cpu_conf.h
@@ -46,7 +46,8 @@
  * * STM32L1XX_XL: Ultra Low Power XL-density devices: STM32L151xExx,
  *   STM32L152xExx and STM32L162xExx
  */
-#if defined(CPU_MODEL_STM32L151RBA) || defined(CPU_MODEL_STM32L151CB)
+#if defined(CPU_MODEL_STM32L151RB_A) || defined(CPU_MODEL_STM32L151CB) || \
+    defined(CPU_MODEL_STM32L151CB_A)
 #define STM32L1XX_MD (1U)
 #elif defined(CPU_MODEL_STM32L151RC)
 #define STM32L1XX_MDP (1U)
@@ -64,7 +65,8 @@ extern "C" {
  * @{
  */
 #define CPU_DEFAULT_IRQ_PRIO            (1U)
-#if defined(CPU_MODEL_STM32L151RBA) || defined(CPU_MODEL_STM32L151CB)
+#if defined(CPU_MODEL_STM32L151RB_A) || defined(CPU_MODEL_STM32L151CB) || \
+    defined(CPU_MODEL_STM32L151CB_A)
 #define CPU_IRQ_NUMOF                   (45U)
 #else
 #define CPU_IRQ_NUMOF                   (57U)
diff --git a/cpu/stm32l1/include/periph_cpu.h b/cpu/stm32l1/include/periph_cpu.h
index 183ae4cdd..bfbce0454 100644
--- a/cpu/stm32l1/include/periph_cpu.h
+++ b/cpu/stm32l1/include/periph_cpu.h
@@ -30,7 +30,8 @@ extern "C" {
 /**
  * @name    Starting address of the CPU ID
  */
-#if defined(CPU_MODEL_STM32L151RBA) || defined(CPU_MODEL_STM32L151CB)
+#if defined(CPU_MODEL_STM32L151RB_A) || defined(CPU_MODEL_STM32L151CB) || \
+    defined(CPU_MODEL_STM32L151CB_A)
 #define CPUID_ADDR          (0x1ff80050)
 #else
 #define CPUID_ADDR          (0x1ff800d0)
@@ -82,7 +83,7 @@ typedef enum {
 #define EEPROM_SIZE                (16384UL)  /* 16kB */
 #elif defined(CPU_MODEL_STM32L151RC)
 #define EEPROM_SIZE                (8192U)    /* 8kB */
-#elif defined(CPU_MODEL_STM32L151CB)
+#elif defined(CPU_MODEL_STM32L151CB) || defined(CPU_MODEL_STM32L151CB_A)
 #define EEPROM_SIZE                (4096U)    /* 4kB */
 #endif
 /** @} */