diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
index 1ae14efc29a2..171d049c1ada 100644
--- a/zephyr/CMakeLists.txt
+++ b/zephyr/CMakeLists.txt
@@ -370,6 +370,8 @@ zephyr_library_sources(
 	${SOF_MATH_PATH}/decibels.c
 	${SOF_MATH_PATH}/numbers.c
 	${SOF_MATH_PATH}/trig.c
+	${SOF_MATH_PATH}/exp_fcn.c
+	${SOF_MATH_PATH}/exp_fcn_hifi.c
 
 	# SOF library - parts to transition to Zephyr over time
 	${SOF_LIB_PATH}/clk.c