diff --git a/aegisub/src/persist_location.h b/aegisub/src/persist_location.h
index 586237f61..eef5f101b 100644
--- a/aegisub/src/persist_location.h
+++ b/aegisub/src/persist_location.h
@@ -23,7 +23,7 @@
 namespace agi { class OptionValue; }
 class wxDialog;
 class wxMoveEvent;
-class wxIconizeEvent;
+class wxSizeEvent;
 
 #ifndef AGI_PRE
 #include <string>