Fix swig header install.
diff --git a/swig/CMakeLists.txt b/swig/CMakeLists.txt
index bb4a9c3..5867b20 100644
--- a/swig/CMakeLists.txt
+++ b/swig/CMakeLists.txt
@@ -11,4 +11,6 @@
    DESTINATION lib/python${PYTHON_VERSION}/site-packages/libplist/ )
 INSTALL( FILES ${CMAKE_CURRENT_SOURCE_DIR}/__init__.py
    DESTINATION lib/python${PYTHON_VERSION}/site-packages/libplist/ )
+INSTALL( FILES ${CMAKE_CURRENT_SOURCE_DIR}/plist.i
+   DESTINATION include/plist/swig COMPONENT dev)