diff --git a/include/libopencm3/stm32/f3/iwdg.h b/include/libopencm3/stm32/f3/iwdg.h
index c7413a4e..56d3a892 100644
--- a/include/libopencm3/stm32/f3/iwdg.h
+++ b/include/libopencm3/stm32/f3/iwdg.h
@@ -43,7 +43,7 @@
 /* --- IWDG_SR values ------------------------------------------------------ */
 
 /* WVU: Watchdog counter window value update */
-#define IWGD_SR_WVU                     (1 << 2)
+#define IWDG_SR_WVU			(1 << 2)
 
 /* --- IWDG_WIN values ----------------------------------------------------- */
 
diff --git a/include/libopencm3/stm32/l4/iwdg.h b/include/libopencm3/stm32/l4/iwdg.h
index 5dac9043..7be0dbb4 100644
--- a/include/libopencm3/stm32/l4/iwdg.h
+++ b/include/libopencm3/stm32/l4/iwdg.h
@@ -42,7 +42,7 @@
 /* --- IWDG_SR values ------------------------------------------------------ */
 
 /* WVU: Watchdog counter window value update */
-#define IWGD_SR_WVU                     (1 << 2)
+#define IWDG_SR_WVU                     (1 << 2)
 
 /* --- IWDG_WIN values ----------------------------------------------------- */