diff --git a/CMakeLists.txt b/CMakeLists.txt
index fa3b7c5..8bd1dcc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -230,6 +230,8 @@ configure_file(
   "${CMAKE_CURRENT_BINARY_DIR}/js8call_config.h"
 )
 
+add_definitions(-include ${CMAKE_CURRENT_BINARY_DIR}/js8call_config.h)
+
 target_precompile_headers(
   ${TARGET} PRIVATE
   ${CMAKE_CURRENT_BINARY_DIR}/js8call_config.h