diff --git a/Documentation/pkglist_filter b/Documentation/pkglist_filter
index cc9830990a5..4c930d5edc9 100755
--- a/Documentation/pkglist_filter
+++ b/Documentation/pkglist_filter
@@ -1,9 +1,9 @@
 #!/bin/sh
 
 if which python2 2>/dev/null >/dev/null; then 
-    exec python2 ${CMAKE_SOURCE_DIR}/Documentation/pkglist_filter.py "$1"
+    exec python2 ${CMAKE_BINARY_DIR}/pkglist_filter.py "$1"
 elif which python2.7 2>/dev/null >/dev/null; then 
-    exec python2.7 ${CMAKE_SOURCE_DIR}/Documentation/pkglist_filter.py "$1"
+    exec python2.7 ${CMAKE_BINARY_DIR}/pkglist_filter.py "$1"
 elif which python2.6 2>/dev/null >/dev/null; then 
-    exec python2.6 ${CMAKE_SOURCE_DIR}/Documentation/pkglist_filter.py "$1"
+    exec python2.6 ${CMAKE_BINARY_DIR}/pkglist_filter.py "$1"
 fi
diff --git a/Documentation/pkglist_filter.bat b/Documentation/pkglist_filter.bat
index 69730cf7d71..1cc512ae7c2 100644
--- a/Documentation/pkglist_filter.bat
+++ b/Documentation/pkglist_filter.bat
@@ -15,4 +15,4 @@ if not errorlevel 1 ( set python=python2.7 )
 @echo on
 
 :go
-%python% ${CMAKE_SOURCE_DIR}/pkglist_filter.py %1
+%python% ${CMAKE_BINARY_DIR}/pkglist_filter.py %1
diff --git a/Documentation/pkglist_filter.py b/Documentation/pkglist_filter.py
index dc6d4e060d1..acebdcc0b45 100755
--- a/Documentation/pkglist_filter.py
+++ b/Documentation/pkglist_filter.py
@@ -17,9 +17,9 @@ def main(argv):
             if(index > 0):
                 top_level = pkg[:index]
                 lower_level = pkg[index+1:]
-                filename="../" + top_level + "/doc/" + lower_level + "/PackageDescription.txt"
+                filename="${CMAKE_SOURCE_DIR}/" + top_level + "/doc/" + lower_level + "/PackageDescription.txt"
             else:
-                filename="../" + pkg + "/doc/" + pkg + "/PackageDescription.txt"
+                filename="${CMAKE_SOURCE_DIR}/" + pkg + "/doc/" + pkg + "/PackageDescription.txt"
             pkgdesc = codecs.open(filename, 'r', encoding='utf-8')
             do_print=False
             for l in pkgdesc: