1 files changed, 1 insertions, 1 deletions
diff --git a/src/file.h b/src/file.h
index b8e15bf3e..b173ca58c 100644
--- a/src/file.h
+++ b/src/file.h
@@ -24,7 +24,7 @@ class SPObject;
 
 namespace Inkscape {
     namespace Extension {
-        struct Extension;
+        class Extension;
     }
 }