diff --git a/aegisub/src/preferences.cpp b/aegisub/src/preferences.cpp
index f09e8bd05..f257c7996 100644
--- a/aegisub/src/preferences.cpp
+++ b/aegisub/src/preferences.cpp
@@ -158,6 +158,10 @@ Interface::Interface(wxTreebook *book): OptionPage(book, _("Interface")) {
 
 /// Interface Colours preferences subpage
 Interface_Colours::Interface_Colours(wxTreebook *book): OptionPage(book, _("Colours"), PAGE_SCROLL|PAGE_SUB) {
+	delete sizer;
+	wxSizer *main_sizer = new wxBoxSizer(wxHORIZONTAL);
+	sizer = new wxBoxSizer(wxVERTICAL);
+	main_sizer->Add(sizer);
 
 	wxFlexGridSizer *general = PageSizer(_("General"));
 	OptionAdd(general, _("Modified Background"), "Colour/Background/Modified");
@@ -178,6 +182,9 @@ Interface_Colours::Interface_Colours(wxTreebook *book): OptionPage(book, _("Colo
 	OptionAdd(audio, _("Syllable text"), "Colour/Audio Display/Syllable Text");
 	OptionAdd(audio, _("Syllable boundaries"), "Colour/Audio Display/Syllable Boundaries");
 
+	sizer = new wxBoxSizer(wxVERTICAL);
+	main_sizer->Add(sizer);
+
 	wxFlexGridSizer *syntax = PageSizer(_("Syntax Highlighting"));
 	OptionAdd(syntax, _("Normal"), "Colour/Subtitle/Syntax/Normal");
 	OptionAdd(syntax, _("Brackets"), "Colour/Subtitle/Syntax/Brackets");
@@ -200,6 +207,8 @@ Interface_Colours::Interface_Colours(wxTreebook *book): OptionPage(book, _("Colo
 	OptionAdd(grid, _("Active Line Border"), "Colour/Subtitle Grid/Active Border");
 	OptionAdd(grid, _("Lines"), "Colour/Subtitle Grid/Lines");
 
+	sizer = main_sizer;
+
 	SetSizerAndFit(sizer);
 }