diff --git a/src/terminal.go b/src/terminal.go
index 03d90064..a762853e 100644
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -1347,7 +1347,7 @@ func (t *Terminal) numItemLines(item *Item, atMost int) (int, bool) {
 	}
 	if cached, prs := t.numLinesCache[item.Index()]; prs {
 		// Can we use this cache? Let's be conservative.
-		if cached.atMost >= atMost {
+		if cached.atMost <= atMost {
 			return cached.numLines, false
 		}
 	}