diff --git a/etc/tools/ParaViewFunctions b/etc/tools/ParaViewFunctions
index 7968344..94fc562 100644
--- a/etc/tools/ParaViewFunctions
+++ b/etc/tools/ParaViewFunctions
@@ -41,11 +41,21 @@
 #
 setParaViewDirs()
 {
-    ParaView_SOURCE_DIR=$WM_THIRD_PARTY_DIR/ParaView-$ParaView_VERSION
+    set -- "ParaView-$ParaView_VERSION" "ParaView-v$ParaView_VERSION"
+
+    unset ParaView_SOURCE_DIR
+    for i
+    do
+        ParaView_SOURCE_DIR="$WM_THIRD_PARTY_DIR/$i"
+        [ -d "$ParaView_SOURCE_DIR" ] && break
+    done
 
     [ -d "$ParaView_SOURCE_DIR" ] || {
-        echo "did not find ParaView-$ParaView_VERSION in these directories:"
-        echo "  WM_THIRD_PARTY_DIR=$WM_THIRD_PARTY_DIR"
+        echo "Did not locate ParaView version:"
+        while [ "$#" -ge 1 ]; do echo "    $1"; shift; done
+        echo
+        echo "In the directory:"
+        echo "    WM_THIRD_PARTY_DIR=$WM_THIRD_PARTY_DIR"
         echo
         echo "abort build"
         exit 1
diff --git a/etc/tools/vtkFunctions b/etc/tools/vtkFunctions
index a87e4e0..89e2392 100644
--- a/etc/tools/vtkFunctions
+++ b/etc/tools/vtkFunctions
@@ -42,11 +42,21 @@
 #
 setVtkDirs()
 {
-    VTK_SOURCE_DIR=$WM_THIRD_PARTY_DIR/VTK-$VTK_VERSION
+    set -- "VTK-$VTK_VERSION" "VTK-v$VTK_VERSION"
+    unset VTK_SOURCE_DIR
+
+    for i
+    do
+        VTK_SOURCE_DIR="$WM_THIRD_PARTY_DIR/$i"
+        [ -d "$VTK_SOURCE_DIR" ] && break
+    done
 
     [ -d "$VTK_SOURCE_DIR" ] || {
-        echo "did not find VTK-$VTK_VERSION in these directories:"
-        echo "  WM_THIRD_PARTY_DIR=$WM_THIRD_PARTY_DIR"
+        echo "Did not locate VTK version:"
+        while [ "$#" -ge 1 ]; do echo "    $1"; shift; done
+        echo
+        echo "In the directory:"
+        echo "    WM_THIRD_PARTY_DIR=$WM_THIRD_PARTY_DIR"
         echo
         echo "abort build"
         exit 1
diff --git a/makeParaView b/makeParaView
index f0a24af..b559e8f 100755
--- a/makeParaView
+++ b/makeParaView
@@ -26,9 +26,12 @@
 #     makeParaView
 #
 # Description
-#     Make and install paraview 4 or 5
-#     - place the paraview source under $WM_THIRD_PARTY_DIR/ParaView-VERSION
-#       (note capitalisation)
+#     Make and install ParaView 4 or 5.
+#     The ParaView sources should be located under one of these locations:
+#       - $WM_THIRD_PARTY_DIR/ParaView-VERSION
+#       - $WM_THIRD_PARTY_DIR/ParaView-vVERSION
+#
+#     Note the capitalization of ParaView in the directory names.
 #
 #------------------------------------------------------------------------------
 # Get ParaView_DIR location from OpenFOAM config file
diff --git a/makeVTK b/makeVTK
index d2b4937..d87b7ce 100755
--- a/makeVTK
+++ b/makeVTK
@@ -26,16 +26,18 @@
 #     makeVTK
 #
 # Description
-#     Make and install VTK
-#     - place the VTK source under $WM_THIRD_PARTY_DIR/VTK-VERSION
+#     Make and install VTK.
+#     The VTK sources should be located under one of these locations:
+#       - $WM_THIRD_PARTY_DIR/ParaView-VERSION
+#       - $WM_THIRD_PARTY_DIR/ParaView-vVERSION
 #
 #     To use the VTK source from the ParaView source tree, simply make an
 #     appropriate link first. For example,
 #
-#        ln -s ParaView-5.1.0/VTK  VTK-7.1.0
+#        ln -s ParaView-v5.2.0/VTK  VTK-7.1.0
 #
 #------------------------------------------------------------------------------
-# run from third-party directory only
+# Run from third-party directory only
 cd ${0%/*} || exit 1
 wmakeCheckPwd "$WM_THIRD_PARTY_DIR" || {
     echo "Error: Current directory is not \$WM_THIRD_PARTY_DIR"