diff --git a/libs/ardour/ardour/svn_revision.h b/libs/ardour/ardour/svn_revision.h
new file mode 100644
index 0000000000..a44b97b5da
--- /dev/null
+++ b/libs/ardour/ardour/svn_revision.h
@@ -0,0 +1,6 @@
+#ifndef __ardour_svn_revision_h__
+#define __ardour_svn_revision_h__
+namespace ARDOUR {
+extern const char* svn_revision;
+}
+#endif