diff --git a/README.md b/README.md
index ef26d26a..7dfb2d43 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,8 @@ $ make {test_server|test_client}
 
 # Run only specific tests
 $ ./bin/run_tests.sh {-h|--help}
-$ ./bin/run_tests.sh {server|client} B56
+$ ./bin/run_tests.sh {server|client} B56Sp3
+$ make {test_server|test_client} tid=B56
 
 # Check test metrics
 $ make {metrics_test_server|metrics_test_client}
diff --git a/bin/build_image.sh b/bin/build_image.sh
index 7f91765c..764c5548 100755
--- a/bin/build_image.sh
+++ b/bin/build_image.sh
@@ -89,8 +89,8 @@ build_image()
   # Tag image-name for local development where differs name comes from echo-versioner-env-vars
   if [ "${type}" == 'server' ]; then
     docker tag "${image_name}" "cyberdojo/differ:${CYBER_DOJO_DIFFER_TAG}"
-    echo "echo CYBER_DOJO_DIFFER_SHA=${CYBER_DOJO_DIFFER_SHA}"
-    echo "echo CYBER_DOJO_DIFFER_TAG=${CYBER_DOJO_DIFFER_TAG}"]
+    echo "  echo CYBER_DOJO_DIFFER_SHA=${CYBER_DOJO_DIFFER_SHA}"
+    echo "  echo CYBER_DOJO_DIFFER_TAG=${CYBER_DOJO_DIFFER_TAG}"]
     echo "${image_name}"
   fi
 }
diff --git a/bin/run_tests.sh b/bin/run_tests.sh
index 7814f135..2694671f 100755
--- a/bin/run_tests.sh
+++ b/bin/run_tests.sh
@@ -94,7 +94,7 @@ run_tests()
     --env COVERAGE_TEST_TAB_NAME=test \
     --user "${USER}" \
     "${CONTAINER_NAME}" \
-      sh -c "/differ/test/lib/run.sh ${CONTAINER_COVERAGE_DIR} ${TEST_LOG} ${*:2}"
+      sh -c "/differ/test/lib/run.sh ${CONTAINER_COVERAGE_DIR} ${TEST_LOG} ${*:2} ${tid:-}"
   local -r STATUS=$?
   set -e