diff --git a/lib/OpenQA/WebAPI/Controller/Test.pm b/lib/OpenQA/WebAPI/Controller/Test.pm
index 02d71af1dc9..ff4735e70f0 100644
--- a/lib/OpenQA/WebAPI/Controller/Test.pm
+++ b/lib/OpenQA/WebAPI/Controller/Test.pm
@@ -673,7 +673,7 @@ sub overview {
     my %stash = (
         # build, version, distri are not mandatory and therefore not
         # necessarily come from the search args so they can be undefined.
-        build   => $search_args->{build},
+        build   => ref $search_args->{build} eq 'ARRAY' ? join(',', @{$search_args->{build}}) : $search_args->{build},
         version => $search_args->{version},
         distri  => $search_args->{distri},
         groups  => $groups,
diff --git a/lib/OpenQA/WebAPI/Plugin/Helpers.pm b/lib/OpenQA/WebAPI/Plugin/Helpers.pm
index 5fb935bd5fe..9fd4d6dc7ef 100644
--- a/lib/OpenQA/WebAPI/Plugin/Helpers.pm
+++ b/lib/OpenQA/WebAPI/Plugin/Helpers.pm
@@ -382,11 +382,17 @@ sub _compose_job_overview_search_args {
 
     # determine build number
     if (!$search_args{build}) {
-        # yield the latest build of the first group if (multiple) groups but not build specified
-        # note: the search arg 'groupid' is ignored by complex_query() because we later assign 'groupids'
-        $search_args{groupid} = $groups[0]->id if (@groups);
-
-        $search_args{build} = $schema->resultset('Jobs')->latest_build(%search_args);
+        if (@groups) {
+            my %builds;
+            for my $group (@groups) {
+                my $build = $schema->resultset('Jobs')->latest_build(%search_args, groupid => $group->id) or next;
+                $builds{$build}++;
+            }
+            $search_args{build} = [sort keys %builds];
+        }
+        else {
+            $search_args{build} = $schema->resultset('Jobs')->latest_build(%search_args);
+        }
 
         # print debug output
         if (@groups == 0) {
diff --git a/t/10-tests_overview.t b/t/10-tests_overview.t
index 87781254efa..a87d020ca8e 100644
--- a/t/10-tests_overview.t
+++ b/t/10-tests_overview.t
@@ -233,11 +233,40 @@ $t->get_ok('/tests/overview?distri=opensuse&version=13.1&groupid=1001&groupid=10
 $summary = get_summary;
 like(
     $summary,
-    qr/Summary of opensuse, opensuse test/i,
-    'multiple groups with no build specified yield latest build of first group'
+    qr/Summary of opensuse, opensuse test build 0091[^,]/i,
+    'multiple groups with no build specified yield the same, latest build of every group'
 );
 like($summary, qr/Passed: 2 Failed: 0 Scheduled: 1 Running: 2 None: 1/i);
 
+my $jobGroup = $t->app->schema->resultset('JobGroups')->create(
+    {
+        id         => 1003,
+        sort_order => 0,
+        name       => 'opensuse test 2'
+    });
+
+my $job = $t->app->schema->resultset('Jobs')->create(
+    {
+        id       => 99964,
+        BUILD    => '0092',
+        group_id => 1003,
+        TEST     => 'kde',
+        DISTRI   => 'opensuse',
+        VERSION  => '13.1'
+    });
+
+$t->get_ok('/tests/overview?distri=opensuse&version=13.1&groupid=1001&groupid=1003')->status_is(200);
+$summary = get_summary;
+like(
+    $summary,
+    qr/Summary of opensuse, opensuse test 2 build 0091,0092/i,
+    'multiple groups with no build specified yield each build for every group'
+);
+like($summary, qr/Passed: 3 Failed: 0 Scheduled: 2 Running: 1 None: 1/i);
+
+$jobGroup->delete();
+$job->delete();
+
 # overview page searches for all available data with less specified parameters
 $t->get_ok('/tests/overview' => form => {build => '0091', version => '13.1'})->status_is(200);
 $t->get_ok('/tests/overview' => form => {build => '0091', distri  => 'opensuse'})->status_is(200);