diff --git a/aegisub/src/dialog_detached_video.cpp b/aegisub/src/dialog_detached_video.cpp
index 068d9188f..898de9a71 100644
--- a/aegisub/src/dialog_detached_video.cpp
+++ b/aegisub/src/dialog_detached_video.cpp
@@ -69,7 +69,7 @@ DialogDetachedVideo::DialogDetachedVideo(FrameMain *par, const wxSize &initialDi
 	if (Options.AsBool(_T("Detached video maximized"))) Maximize();
 
 	// Set obscure stuff
-	SetExtraStyle(GetExtraStyle() & (~wxWS_EX_BLOCK_EVENTS) | wxWS_EX_PROCESS_UI_UPDATES);
+	SetExtraStyle((GetExtraStyle() & ~wxWS_EX_BLOCK_EVENTS) | wxWS_EX_PROCESS_UI_UPDATES);
 
 	// Set title
 	wxFileName fn(VideoContext::Get()->videoName);
diff --git a/aegisub/src/idle_field_event.cpp b/aegisub/src/idle_field_event.cpp
index b0ed2c17b..9c697a8bf 100644
--- a/aegisub/src/idle_field_event.cpp
+++ b/aegisub/src/idle_field_event.cpp
@@ -137,7 +137,7 @@ void IdleFieldHandler::SetFocus() {
 ///
 void IdleFieldHandler::KillFocus() {
 	bool modify = false;
-	if (text && text->GetValue().IsEmpty() || box && box->GetValue().IsEmpty()) modify = true;
+	if (text && (text->GetValue().IsEmpty() || box) && box->GetValue().IsEmpty()) modify = true;
 
 	if (modify) {
 		// Prepare