diff --git a/CMakeLists.txt b/CMakeLists.txt
index d34740c..e7874e8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,8 +11,8 @@ option(LIBFTP_BUILD_EXAMPLES "Build the examples" ${is_top_level})
 option(LIBFTP_BUILD_CMDLINE_CLIENT "Build the command-line FTP client application" ${is_top_level})
 
 if (LIBFTP_BUILD_TESTS)
-    # Boost::system and Boost::filesystem are required for building of tests.
-    find_package(Boost 1.67.0 COMPONENTS system filesystem REQUIRED)
+    # Boost::filesystem is required to build the tests.
+    find_package(Boost 1.67.0 COMPONENTS filesystem REQUIRED)
 else()
     find_package(Boost 1.67.0 REQUIRED)
 endif()