diff --git a/tests/runtests.pl b/tests/runtests.pl
index e26da06c90b34750730ddc923e8d998737153089..d69e9b33278d6a17fdc2deff9a2aeacb3b4ef683 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -1146,7 +1146,7 @@ sub singletest {
     }
 
     if($valgrind) {
-        $CMDLINE = "valgrind ".$valgrind_tool."--leak-check=yes --logfile=log/valgrind$testnum $CMDLINE";
+        $CMDLINE = "valgrind ".$valgrind_tool."--leak-check=yes --num-callers=16 --logfile=log/valgrind$testnum $CMDLINE";
     }
 
     $CMDLINE .= "$cmdargs >>$STDOUT 2>>$STDERR";