diff --git a/jenkins/helper/async_client.py b/jenkins/helper/async_client.py
index 1861ab6e..efea8305 100644
--- a/jenkins/helper/async_client.py
+++ b/jenkins/helper/async_client.py
@@ -208,11 +208,12 @@ def kill_children(identifier, params, children):
         if one_child.pid in killed:
             continue
         try:
-            killed.append(one_child.pid)
-            err += add_message_to_report(
-                params,
-                f"{identifier}: killing {one_child.name()} - {str(one_child.pid)}")
-            one_child.resume()
+            if one_child.name() != "svchost.exe":
+                killed.append(one_child.pid)
+                err += add_message_to_report(
+                    params,
+                    f"{identifier}: killing {one_child.name()} - {str(one_child.pid)}")
+                one_child.resume()
         except FileNotFoundError:
             pass
         except AttributeError:
diff --git a/jenkins/runRTAtest.fish b/jenkins/runRTAtest.fish
index 49599558..f3aeb347 100755
--- a/jenkins/runRTAtest.fish
+++ b/jenkins/runRTAtest.fish
@@ -15,6 +15,16 @@ if test "$ASAN" = "true"
    sanOn
    and buildSanFlags "$WORKDIR/work/ArangoDB"
 end
+if test "$COVERAGE" = "true"
+    echo "Coverage build"
+    coverageOn
+    rm -rf $WORKDIR/work/gcov.old
+    if test -d $WORKDIR/work/gcov ; mv $WORKDIR/work/gcov $WORKDIR/work/gcov.old ; end
+end
+if test "$BUILD_MODE" = "maintainer"
+   echo "switching to maintainer build"
+   maintainerOn
+end
 if test "$BUILD_MODE" = "debug"
    echo "switching to debug build"
    debugMode
@@ -46,6 +56,9 @@ for f in $matches
    echo $f | grep -qv testreport ; and echo "mv $f $WORKSPACE" ; and mv $f $WORKSPACE; or echo "skipping $f"
 end
 
+if test "$COVERAGE" = "true"
+    collectCoverage
+end
 unlockDirectory
 
 exit $s