1 files changed, 2 insertions, 1 deletions

diff --git a/src/fontpack.h b/src/fontpack.h
index 5d592822..d86de945 100644
--- a/src/fontpack.h
+++ b/src/fontpack.h
@@ -131,7 +131,8 @@ struct Impl_FontSpec {
 };
 
 iLocalDef int scaleType_FontSpec(enum iFontSize sizeId) {
-    return sizeId / contentRegular_FontSize;
+    iAssert(sizeId >= 0 && sizeId < max_FontSize);
+    return sizeId < contentRegular_FontSize ? 0 : 1;
 }
 
 /*----------------------------------------------------------------------------------------------*/