diff --git a/minzip/DirUtil.h b/minzip/DirUtil.h
index 5d881f5..0d5ea7c 100644
--- a/minzip/DirUtil.h
+++ b/minzip/DirUtil.h
@@ -20,6 +20,10 @@
 #include <stdbool.h>
 #include <utime.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Like "mkdir -p", try to guarantee that all directories
  * specified in path are present, creating as many directories
  * as necessary.  The specified mode is passed to all mkdir
@@ -48,4 +52,8 @@
 int dirSetHierarchyPermissions(const char *path,
          int uid, int gid, int dirMode, int fileMode);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif  // MINZIP_DIRUTIL_H_