diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68da6c5..781fb97 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -820,7 +820,8 @@ target_include_directories(
          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/textord>
          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/viewer>
          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/wordrec>
-         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/training>)
+         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/training>
+         $<INSTALL_INTERFACE:include>)
 if(BUILD_SHARED_LIBS)
   target_compile_definitions(
     libtesseract