Include git2/common.h in sys/openssl.h.
diff --git a/include/git2/sys/openssl.h b/include/git2/sys/openssl.h
index ad05e6c..b41c55c 100644
--- a/include/git2/sys/openssl.h
+++ b/include/git2/sys/openssl.h
@@ -7,7 +7,7 @@
#ifndef INCLUDE_git_openssl_h__
#define INCLUDE_git_openssl_h__
-#include "common.h"
+#include "git2/common.h"
GIT_BEGIN_DECL