diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5b885558..15e9a7c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -413,6 +413,7 @@ if (NOT PIP_FREERTOS)
 					set(${FFTW_CLN}_CTS "${FFTW_CLN}")
 					if(${FFTW_CLNT}_FOUND)
 						list(APPEND FFTW_LIBS "${FFTW_CLNT}")
+						list(APPEND FFTW_ABS_LIBS "${${FFTW_CLNT}_FOUND}")
 						list(APPEND ${FFTW_CLN}_CTS "${FFTW_CLNT}")
 					endif()
 					set(CMAKE_REQUIRED_LIBRARIES ${${FFTW_CLN}_CTS})