diff --git a/PBGitGrapher.mm b/PBGitGrapher.mm
index e1b8d88..04525c7 100644
--- a/PBGitGrapher.mm
+++ b/PBGitGrapher.mm
@@ -6,15 +6,12 @@
 //  Copyright 2008 __MyCompanyName__. All rights reserved.
 //
 
-extern "C" {
-#import "git/oid.h"
-}
-
 #import "PBGitGrapher.h"
 #import "PBGitCommit.h"
 #import "PBGitLane.h"
 #import "PBGitGraphLine.h"
 #import <list>
+#import "git/oid.h"
 
 using namespace std;
 
diff --git a/PBGitLane.h b/PBGitLane.h
index 4433d42..2a1dcd9 100644
--- a/PBGitLane.h
+++ b/PBGitLane.h
@@ -6,10 +6,7 @@
 //  Copyright 2008 __MyCompanyName__. All rights reserved.
 //
 #import <Cocoa/Cocoa.h>
-extern "C"
-{
 #include "git/oid.h"
-}
 
 class PBGitLane {
 	static int s_colorIndex;
diff --git a/PBGitRevList.mm b/PBGitRevList.mm
index af17ab4..f2d4ccd 100644
--- a/PBGitRevList.mm
+++ b/PBGitRevList.mm
@@ -6,17 +6,13 @@
 //  Copyright 2008 __MyCompanyName__. All rights reserved.
 //
 
-extern "C"
-{
-#include "git/oid.h"
-}
-
 #import "PBGitRevList.h"
 #import "PBGitRepository.h"
 #import "PBGitCommit.h"
 #import "PBGitGrapher.h"
 #import "PBGitRevSpecifier.h"
 
+#include "git/oid.h"
 #include <ext/stdio_filebuf.h>
 #include <iostream>
 #include <string>