1 files changed, 6 insertions, 0 deletions
diff --git a/src/file.h b/src/file.h
index 1817dc9c..bedceada 100644
--- a/src/file.h
+++ b/src/file.h
@@ -32,6 +32,10 @@
 */
 
 
+#ifndef LIBDCP_FILE_H
+#define LIBDCP_FILE_H
+
+
 #include <boost/filesystem/path.hpp>
 
 
@@ -94,3 +98,5 @@ boost::filesystem::path fix_long_path(boost::filesystem::path long_path);
 
 }
 
+
+#endif