diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8061f47..f9382ed 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,7 +53,7 @@ endif()
 
 find_package(OpenSSL REQUIRED)
 find_package(ZLIB REQUIRED)
-find_package(Libwebsockets 1.7.0 QUIET)
+find_package(libwebsockets 1.7.0 QUIET)
 
 if(NOT Libwebsockets_FOUND) # for libwebsockets-dev on ubuntu 16.04
     find_path(LIBWEBSOCKETS_INCLUDE_DIR NAMES libwebsockets.h)