diff --git a/Framework/TestHelpers/src/WorkspaceCreationHelper.cpp b/Framework/TestHelpers/src/WorkspaceCreationHelper.cpp
index ef83cc240b8bada080c773efbd1594b9f772db07..cb4c5e4bca06d50c67add414f4b786dd6fe52baa 100644
--- a/Framework/TestHelpers/src/WorkspaceCreationHelper.cpp
+++ b/Framework/TestHelpers/src/WorkspaceCreationHelper.cpp
@@ -1544,7 +1544,7 @@ createEPPTableWorkspace(const std::vector<EPPTableRow> &rows) {
 }
 Mantid::DataObjects::Workspace2D_sptr create2DWorkspace123WithMaskedBin(
     int numHist, int numBins, int maskedWorkspaceIndex, int maskedBinIndex) {
-  auto &ws = create2DWorkspace123(numHist, numBins);
+  auto ws = create2DWorkspace123(numHist, numBins);
   ws->flagMasked(maskedWorkspaceIndex, maskedBinIndex);
   return ws;
 }
diff --git a/qt/python/mantidqt/widgets/matrixworkspacedisplay/presenter.py b/qt/python/mantidqt/widgets/matrixworkspacedisplay/presenter.py
index bee8fa0cee665b0dc9696facfd5e90c232dbb175..52d57ad7184467fc1eb1887daa0dc62de515b00c 100644
--- a/qt/python/mantidqt/widgets/matrixworkspacedisplay/presenter.py
+++ b/qt/python/mantidqt/widgets/matrixworkspacedisplay/presenter.py
@@ -86,7 +86,7 @@ class MatrixWorkspaceDisplay(object):
         for i in range(num_rows):
             # Appends ONE value from each COLUMN, this is because the final string is being built vertically
             # the noqa disables a 'data' variable redefined warning
-            all_string_rows.append(" ".join([data[i] for data in column_data])) # noqa: F812
+            all_string_rows.append(" ".join([data[i] for data in column_data]))  # noqa: F812
 
         # Finally all rows are joined together with a new line at the end of each row
         final_string = "\n".join(all_string_rows)