diff --git a/Makefile b/Makefile
index 4249730..b948996 100644
--- a/Makefile
+++ b/Makefile
@@ -581,7 +581,7 @@
 else
 ifeq ($(TARGET_OS), Darwin)
 # DirectHW framework can be found in the DirectHW library.
-PCILIBS += -framework IOKit -framework DirectHW 
+PCILIBS += -framework IOKit -framework DirectHW
 else
 endif
 endif