diff --git a/aegisub/src/preferences_base.h b/aegisub/src/preferences_base.h
index 810afffff..cda47beed 100644
--- a/aegisub/src/preferences_base.h
+++ b/aegisub/src/preferences_base.h
@@ -43,7 +43,7 @@ protected:
 	wxFlexGridSizer* PageSizer(wxString name);
 
 	void CellSkip(wxFlexGridSizer *flex);
-	wxControl *OptionAdd(wxFlexGridSizer *flex, const wxString &name, const char *opt_name, double min=0, double max=100, double inc=1);
+	wxControl *OptionAdd(wxFlexGridSizer *flex, const wxString &name, const char *opt_name, double min=0, double max=INT_MAX, double inc=1);
 	void OptionChoice(wxFlexGridSizer *flex, const wxString &name, const wxArrayString &choices, const char *opt_name);
 	void OptionBrowse(wxFlexGridSizer *flex, const wxString &name, const char *opt_name, wxControl *enabler = 0, bool do_enable = false);
 	void OptionFont(wxSizer *sizer, std::string opt_prefix);