diff --git a/src/freebsd_ppi.h b/src/freebsd_ppi.h
index 40cf60d5..22f66cbf 100644
--- a/src/freebsd_ppi.h
+++ b/src/freebsd_ppi.h
@@ -25,13 +25,12 @@
 
 #define ppi_release(fd) {}
 
-#define DO_PPI_READ(fd, reg, valp) \
-	(void)ioctl(fd, \
-		(reg) == PPIDATA? PPIGDATA: ((reg) == PPICTRL? PPIGCTRL: PPIGSTATUS), \
-		    valp)
-#define DO_PPI_WRITE(fd, reg, valp) \
-	(void)ioctl(fd, \
-		(reg) == PPIDATA? PPISDATA: ((reg) == PPICTRL? PPISCTRL: PPISSTATUS), \
-		    valp)
+#define DO_PPI_READ(fd, reg, valp) ((void) ioctl((fd), \
+  (reg) == PPIDATA? PPIGDATA: (reg) == PPICTRL? PPIGCTRL: PPIGSTATUS, \
+  (valp)))
 
-#endif /* freebsd_ppi_h */
+#define DO_PPI_WRITE(fd, reg, valp) ((void) ioctl((fd), \
+  (reg) == PPIDATA? PPISDATA: (reg) == PPICTRL? PPISCTRL: PPISSTATUS, \
+  (valp)))
+
+#endif