diff --git a/include/libopencm3/stm32/f4/dsi.h b/include/libopencm3/stm32/f4/dsi.h
index 1c0a1e81..cf70c001 100644
--- a/include/libopencm3/stm32/f4/dsi.h
+++ b/include/libopencm3/stm32/f4/dsi.h
@@ -45,7 +45,7 @@
 /**
  * DSI Host Version Register
  */
-#define DSI_VR				MMIO32(DSI_BASE + 0x0U)	
+#define DSI_VR				MMIO32(DSI_BASE + 0x0U)
 
 /**
  * DSI Host Control Register