diff --git a/include/libopencm3/efm32/lg/burtc.h b/include/libopencm3/efm32/lg/burtc.h
index d3ff15bc..321c9bbb 100644
--- a/include/libopencm3/efm32/lg/burtc.h
+++ b/include/libopencm3/efm32/lg/burtc.h
@@ -74,7 +74,7 @@
 #define BURTC_CTRL_LPCOMPC_MASK		(0x7 << BURTC_CTRL_LPCOMPC_SHIFT)
 #define BURTC_CTRL_LPCOMPC(v)		\
 	(((v) << BURTC_CTRL_LPCOMPC_SHIFT) & BURTC_CTRL_LPCOMPC_MASK)
-#define BURTC_CTRL_LPCOMPC_IGNxLSB	BURTC_CTRL_LPCOMPC(x)
+#define BURTC_CTRL_LPCOMPC_IGNxLSB(x)	BURTC_CTRL_LPCOMPC(x)
 #define BURTC_CTRL_LPCOMPC_IGN0LSB	BURTC_CTRL_LPCOMPC_IGNxLSB(0)
 #define BURTC_CTRL_LPCOMPC_IGN1LSB	BURTC_CTRL_LPCOMPC_IGNxLSB(1)
 #define BURTC_CTRL_LPCOMPC_IGN2LSB	BURTC_CTRL_LPCOMPC_IGNxLSB(2)