diff --git a/CMakeLists.txt b/CMakeLists.txt
index ecb1355..1528a52 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -407,6 +407,7 @@ set_target_properties (glog PROPERTIES PUBLIC_HEADER "${GLOG_PUBLIC_H}")
 target_include_directories (glog BEFORE PUBLIC
   "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"
   "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>"
+  "$<INSTALL_INTERFACE:include>"
   PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)