diff --git a/CMakeLists.txt b/CMakeLists.txt
index cff09634c4a8b4ef1e4495d2d1354f905f5c7748..00b740aa99b64e2ca1bb6a4e11634c391cf9e484 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -289,6 +289,7 @@ if(CMAKE_USE_OPENSSL)
     set(USE_OPENSSL ON)
     set(HAVE_LIBCRYPTO ON)
     set(HAVE_LIBSSL ON)
+    include_directories(${OPENSSL_INCLUDE_DIR})
   endif(OPENSSL_FOUND)
 endif(CMAKE_USE_OPENSSL)