diff --git a/scripts/Python/build-swig-Python.sh b/scripts/Python/build-swig-Python.sh
index 557f63a..6ccea31 100755
--- a/scripts/Python/build-swig-Python.sh
+++ b/scripts/Python/build-swig-Python.sh
@@ -22,6 +22,7 @@
 swig_input_file=${SRC_ROOT}/scripts/lldb.swig
 swig_python_extensions=${SRC_ROOT}/scripts/Python/python-extensions.swig
 swig_python_wrapper=${SRC_ROOT}/scripts/Python/python-wrapper.swig
+swig_python_typemaps=${SRC_ROOT}/scripts/Python/python-typemaps.swig
 
 if [ "x$SDKROOT" = "x" ] ; then
 
@@ -209,6 +210,19 @@
     fi
 fi
 
+if [ $NeedToUpdate == 0 ]
+then
+    if [ ${swig_python_typemaps} -nt ${swig_output_file} ]
+    then
+        NeedToUpdate=1
+        if [ $Debug == 1 ]
+        then
+            echo "${swig_python_typemaps} is newer than ${swig_output_file}"
+            echo "swig file will need to be re-built."
+        fi
+    fi
+fi
+
 os_name=`uname -s`
 python_version=`/usr/bin/python --version 2>&1 | sed -e 's,Python ,,' -e 's,[.][0-9],,2' -e 's,[a-z][a-z][0-9],,'`