diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index dd760e0fc..bd75fce85 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -5978,6 +5978,7 @@ bool FurnaceGUI::loop() {
       ImGui::GetIO().Fonts->Clear();
       mainFont=ImGui::GetIO().Fonts->AddFontDefault();
       patFont=mainFont;
+      bigFont=mainFont;
       if (rend) rend->destroyFontsTexture();
       if (!ImGui::GetIO().Fonts->Build()) {
         logE("error again while building font atlas!");