diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4ef0656..dcca0ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,7 +103,7 @@ target_link_libraries(
 
 set(_DEFAULT_MITCPRESSC_FRONTEND_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "")
 
-function(default_mitcpressc_frontend F_TARGET F_NAME F_EVENT_ID NUM_CH)
+function(default_mitcpressc_frontend F_TARGET F_NAME F_EVENT_ID)
   add_executable(
     ${F_TARGET}
     ${_DEFAULT_MITCPRESSC_FRONTEND_DIR}/frontend/mitcpresscio_scfe.cxx
@@ -112,7 +112,6 @@ function(default_mitcpressc_frontend F_TARGET F_NAME F_EVENT_ID NUM_CH)
 
   target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_NAME="${F_NAME}")
   target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_ID=${F_EVENT_ID})
-  target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_CHANNELS=${NUM_CH})
 
   set_property(
     TARGET