diff --git a/src/iosource/Manager.cc b/src/iosource/Manager.cc
index d205c007fb..1161171743 100644
--- a/src/iosource/Manager.cc
+++ b/src/iosource/Manager.cc
@@ -1,8 +1,7 @@
 // See the file "COPYING" in the main distribution directory for copyright.
 
-
-#include <sys/event.h>
 #include <sys/types.h>
+#include <sys/event.h>
 #include <sys/time.h>
 #include <unistd.h>
 #include <assert.h>