diff --git a/fonts.d b/fonts.d
index bab6659..45c7107 100644
--- a/fonts.d
+++ b/fonts.d
@@ -547,7 +547,7 @@ LoadFontCurves(Arena* arena, SlugFontInfo* font_info, u8[] font_file_data)
 			curve_texel_count += font_info.glyphs[i].curve_count*2;
 		}
 
-		u32 curve_texel_height = clamp(cast(u32)((curve_texel_count+FONT_TEX_WIDTH-1) / FONT_TEX_WIDTH), 1, -1);
+		u32 curve_texel_height = clamp(cast(u32)((curve_texel_count+FONT_TEX_WIDTH-1) / FONT_TEX_WIDTH), 1, u32.max);
 
 		u32[] curve_start_indices   = Alloc!(u32)(arena, font_info.glyphs.length);
 		SlugTexel!(f32) curve_texel = {