diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 25a0df3a..f529262b 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -7,5 +7,5 @@ endif ()
 add_custom_target(doc
   COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build.py ${CPPFORMAT_VERSION})
 
-install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html
+install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
         DESTINATION share/doc/cppformat)