diff --git a/tests/runtests.pl b/tests/runtests.pl
index 491eb1f2b7..4c8a8d7839 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -1722,7 +1722,7 @@ sub singletest_check {
                 $ok .= "m";
             }
             my @more=`$memanalyze -v "$logdir/$MEMDUMP"`;
-            my $allocs;
+            my $allocs = 0;
             my $max = 0;
             for(@more) {
                 if(/^Allocations: (\d+)/) {