diff --git a/cmake/modules/BuildPlugin.cmake b/cmake/modules/BuildPlugin.cmake
index 283c4ba79..2e21eb0ad 100644
--- a/cmake/modules/BuildPlugin.cmake
+++ b/cmake/modules/BuildPlugin.cmake
@@ -54,7 +54,7 @@ MACRO(BUILD_PLUGIN)
 	CAR(PLUGIN_NAME ${PLUGIN_DEFAULT_ARGS})
 	CDR(PLUGIN_SOURCES ${PLUGIN_DEFAULT_ARGS})
 
-	INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}/include ${CMAKE_SOURCE_DIR}/src/gui)
+	INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}/include ${CMAKE_SOURCE_DIR}/src/gui ${CMAKE_INSTALL_PREFIX}/include)
 
 	ADD_DEFINITIONS(-DPLUGIN_NAME=${PLUGIN_NAME})