--- CMakeLists.txt.orig	2016-03-04 12:09:30 UTC
+++ CMakeLists.txt
@@ -419,7 +419,8 @@ INSTALL(TARGETS h2o
     LIBRARY DESTINATION lib)
 
 IF (NOT WITHOUT_LIBS)
-    INSTALL(DIRECTORY include/ DESTINATION include FILES_MATCHING PATTERN "*.h")
+    INSTALL(DIRECTORY include/ DESTINATION include FILES_MATCHING PATTERN "*.h"
+        EXCLUDE PATTERN "h2o" EXCLUDE PATTERN "h2o/socket")
     IF (LIBUV_FOUND)
         INSTALL(FILES "${CMAKE_BINARY_DIR}/libh2o.pc" DESTINATION lib/pkgconfig)
     ENDIF ()