diff --git a/STM32F1/system/libmaple/include/libmaple/timer.h b/STM32F1/system/libmaple/include/libmaple/timer.h
index 2c83e5e..64f458f 100644
--- a/STM32F1/system/libmaple/include/libmaple/timer.h
+++ b/STM32F1/system/libmaple/include/libmaple/timer.h
@@ -393,10 +393,10 @@ extern timer_dev timer14;
 #define TIMER_CCMR1_OC2FE               (1U << TIMER_CCMR1_OC2FE_BIT)
 #define TIMER_CCMR1_IC2PSC              (0x3 << 10)
 #define TIMER_CCMR1_CC2S                (0x3 << 8)
-#define TIMER_CCMR1_CC2S_OUTPUT         (TIMER_CCMR_CCS_OUTPUT << 8)
-#define TIMER_CCMR1_CC2S_INPUT_TI1      (TIMER_CCMR_CCS_INPUT_TI1 << 8)
-#define TIMER_CCMR1_CC2S_INPUT_TI2      (TIMER_CCMR_CCS_INPUT_TI2 << 8)
-#define TIMER_CCMR1_CC2S_INPUT_TRC      (TIMER_CCMR_CCS_INPUT_TRC << 8)
+#define TIMER_CCMR1_CC2S_OUTPUT         (0x0 << 8)
+#define TIMER_CCMR1_CC2S_INPUT_TI2      (0x1 << 8)
+#define TIMER_CCMR1_CC2S_INPUT_TI1      (0x2 << 8)
+#define TIMER_CCMR1_CC2S_INPUT_TRC      (0x3 << 8)
 #define TIMER_CCMR1_OC1CE               (1U << TIMER_CCMR1_OC1CE_BIT)
 #define TIMER_CCMR1_OC1M                (0x3 << 4)
 #define TIMER_CCMR1_IC1F                (0xF << 4)