diff --git a/src/call/voice_sources.cmake b/src/call/voice_sources.cmake
index 195fee34..085a670d 100644
--- a/src/call/voice_sources.cmake
+++ b/src/call/voice_sources.cmake
@@ -20,6 +20,7 @@ function(utun_setup_voice LIB_DIR CALL_DIR)
         ${CALL_DIR}/call_audio.c
         ${CALL_DIR}/call_tones.c
         ${CALL_DIR}/call_jitter.cpp
+        ${CALL_DIR}/call_delay.cpp
         ${CALL_DIR}/call_timeline.cpp
         ${_src_dir}/radio/radio_jitter.cpp
         ${_src_dir}/radio/radio_audio.c
diff --git a/tools/chatgui/CMakeLists.txt b/tools/chatgui/CMakeLists.txt
index b3ac08c0..69e09f0b 100644
--- a/tools/chatgui/CMakeLists.txt
+++ b/tools/chatgui/CMakeLists.txt
@@ -472,6 +472,10 @@ target_include_directories(test_call_jitter PRIVATE ${CMAKE_SOURCE_DIR}/../../sr
 target_link_libraries(test_call_jitter PRIVATE utun_voice utun pthread)
 add_test(NAME test_call_jitter COMMAND test_call_jitter)
 
+add_executable(test_call_delay tests/test_call_delay.cpp)
+target_link_libraries(test_call_delay PRIVATE utun_voice utun pthread)
+add_test(NAME test_call_delay COMMAND test_call_delay)
+
 add_executable(test_soundtouch_clock tests/test_soundtouch_clock.cpp)
 target_link_libraries(test_soundtouch_clock PRIVATE utun_voice utun pthread)
 add_test(NAME test_soundtouch_clock COMMAND test_soundtouch_clock)