diff --git a/vars/helper.groovy b/vars/helper.groovy
index 28d5f7486e425a7d98a0ca6b62642df18ba0ea8d..2ca2e96d2b2d2df80c1a762b0bf9c008d8af15bc 100644
--- a/vars/helper.groovy
+++ b/vars/helper.groovy
@@ -160,7 +160,7 @@ def doBuild(String label, String buildType) {
       sudo -H -u msk_jenkins mkdir -p /scratch/build-${JOB_NAME}
       sudo -H -u msk_jenkins mkdir -p /scratch/install
       cd /scratch/build-${JOB_NAME}
-      // we might run only part of the project from a sub-directory. If it is empty the trailing / does not confuse cmake
+      # We might run only part of the project from a sub-directory. If it is empty the trailing / does not confuse cmake
       sudo -H -u msk_jenkins cmake /scratch/source/${env.RUN_FROM_SUBDIR} -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=${buildType} -DSUPPRESS_AUTO_DOC_BUILD=true \${CMAKE_EXTRA_ARGS}
       sudo -H -u msk_jenkins make ${env.MAKEOPTS}
     """