diff --git a/apps/openmw/mwgui/windowmanagerimp.cpp b/apps/openmw/mwgui/windowmanagerimp.cpp
index 493a14a1cb..03cbc3ef2a 100644
--- a/apps/openmw/mwgui/windowmanagerimp.cpp
+++ b/apps/openmw/mwgui/windowmanagerimp.cpp
@@ -309,7 +309,7 @@ namespace MWGui
                 // to allow to configure font size via config file, without need to edit XML file.
                 // Also we should take UI scaling factor in account
                 int resolution = Settings::Manager::getInt("ttf resolution", "GUI");
-                resolution = std::max(0, resolution);
+                resolution = std::min(960, std::max(48, resolution));
 
                 float uiScale = Settings::Manager::getFloat("scaling factor", "GUI");
 
diff --git a/docs/source/reference/modding/settings/GUI.rst b/docs/source/reference/modding/settings/GUI.rst
index 3fe943b6f6..2092096c93 100644
--- a/docs/source/reference/modding/settings/GUI.rst
+++ b/docs/source/reference/modding/settings/GUI.rst
@@ -27,7 +27,7 @@ ttf resolution
 --------------
 
 :Type:		integer
-:Range:		> 0
+:Range:		48 to 960
 :Default:	96
 
 Allows to specify resolution for in-game TrueType fonts.