diff --git a/applications/utilities/postProcessing/graphics/PV3Readers/Allwmake b/applications/utilities/postProcessing/graphics/PV3Readers/Allwmake
index 1e2ebd6c43ff620e729119a3d8d2ffa977f34c52..cd3a58ffedc2fd1bb0ee8aeb3e833e18bdf69490 100755
--- a/applications/utilities/postProcessing/graphics/PV3Readers/Allwmake
+++ b/applications/utilities/postProcessing/graphics/PV3Readers/Allwmake
@@ -7,9 +7,9 @@ then
     case "$ParaView_VERSION" in
     3* | git)
 
-        if [ ! -d "${PV_PLUGIN_PATH}" ]
+        if [ ! -n "${PV_PLUGIN_PATH}" ]
         then
-            echo "$0 : PV_PLUGIN_PATH not a valid directory."
+            echo "$0 : PV_PLUGIN_PATH not a valid."
             exit 1
         fi