diff --git a/CMakeLists.txt b/CMakeLists.txt
index c07d17a..1f48262 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,6 +50,7 @@ if(ENABLE_C++)
 	set_target_properties(rjp++ PROPERTIES PUBLIC_HEADER ${INCLUDE_PATH_CPP}/rjp.hpp)
 	set_target_properties(rjp++ PROPERTIES COMPILE_FLAGS -std=c++17)
 	target_compile_options(rjp++ PRIVATE -Wall -Wextra -pedantic)
+	target_link_libraries(rjp++ -lrexy)
 	install(TARGETS rjp++
 		ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
 		LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}