diff --git a/tests/run-tests.html b/tests/run-tests.html
index 89c8554c8c..46bea5d640 100644
--- a/tests/run-tests.html
+++ b/tests/run-tests.html
@@ -32,7 +32,7 @@ body { height: 98%; font: normal normal 10pt sans-serif }
 #col1 {  float: left; width: 27em; margin: 0 0 0 1em; overflow: visible; }
 #col2 {  position: relative; height: 98%; margin: 0 0.5em 0 28em; }
 #col1_header { margin-top: 0.5em; }
-#scroller { height: 550px; overflow: auto;}
+#scroller { height: 400px; overflow: auto;}
 #testtable { margin: 0 0 2em 0; width: 97%; }
 #run_buttons { margin-bottom: 4em; }