diff --git a/configs/stm3240g-eval/include/board.h b/configs/stm3240g-eval/include/board.h
index b66997235ef..8ed7663430f 100755
--- a/configs/stm3240g-eval/include/board.h
+++ b/configs/stm3240g-eval/include/board.h
@@ -124,16 +124,16 @@
 #define STM32_HCLK_FREQUENCY    STM32_SYSCLK_FREQUENCY
 #define STM32_BOARD_HCLK        STM32_HCLK_FREQUENCY  /* same as above, to satisfy compiler */
 
-/* APB2 clock (PCLK2) is HCLK/2 (84MHz) */
-
-#define STM32_RCC_CFGR_PPRE2    RCC_CFGR_PPRE1_HCLKd2 /* PCLK2 = HCLK / 2 */
-#define STM32_PCLK2_FREQUENCY   (STM32_HCLK_FREQUENCY/2)
-
 /* APB1 clock (PCLK1) is HCLK/4 (42MHz) */
 
-#define STM32_RCC_CFGR_PPRE1    RCC_CFGR_PPRE2_HCLKd4 /* PCLK1 = HCLK / 4 */
+#define STM32_RCC_CFGR_PPRE1    RCC_CFGR_PPRE1_HCLKd4 /* PCLK1 = HCLK / 4 */
 #define STM32_PCLK1_FREQUENCY   (STM32_HCLK_FREQUENCY/4)
 
+/* APB2 clock (PCLK2) is HCLK/2 (84MHz) */
+
+#define STM32_RCC_CFGR_PPRE2    RCC_CFGR_PPRE2_HCLKd2 /* PCLK2 = HCLK / 2 */
+#define STM32_PCLK2_FREQUENCY   (STM32_HCLK_FREQUENCY/2)
+
 /* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
  * otherwise frequency is 2xAPBx. 
  * Note: TIM1,8 are on APB2, others on APB1