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-rw-r--r--src/gfx.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/gfx.cpp b/src/gfx.cpp
index ae2bd18f9..8797c7739 100644
--- a/src/gfx.cpp
+++ b/src/gfx.cpp
@@ -548,10 +548,11 @@ uint DrawStringMultiLine(int x, int y, StringID str, int maxw, int maxh)
mt = GetCharacterHeight((FontSize)GB(tmp, 16, 16));
total_height = (num + 1) * mt;
- if (maxh != -1 && total_height > (uint)maxh) {
- num = maxh / mt - 1;
- if (num < 1) return 0;
+ if (maxh != -1 && (int)total_height > maxh) {
+ /* Check there's room enough for at least one line. */
+ if (maxh < mt) return 0;
+ num = maxh / mt - 1;
total_height = (num + 1) * mt;
}