diff --git a/nfapi/open-nFAPI/fapi/CMakeLists.txt b/nfapi/open-nFAPI/fapi/CMakeLists.txt
index bd93d05447..1e2208172f 100644
--- a/nfapi/open-nFAPI/fapi/CMakeLists.txt
+++ b/nfapi/open-nFAPI/fapi/CMakeLists.txt
@@ -4,3 +4,6 @@ add_library(nr_fapi_p5
 )
 target_include_directories(nr_fapi_p5 PUBLIC inc)
 target_link_libraries(nr_fapi_p5 PUBLIC nfapi_common)
+if(OAI_AERIAL)
+    target_compile_definitions(nr_fapi_p5 PRIVATE ENABLE_AERIAL)
+endif()