diff --git a/cmake/util.cmake b/cmake/util.cmake
index a6118f0e34..ff954b7a4e 100644
--- a/cmake/util.cmake
+++ b/cmake/util.cmake
@@ -4,8 +4,7 @@
 # PREFIX - TARGET or similar (can be empty string)
 # KEYWORD_LIST - list of labels that are used to include directories
 function(mbed_add_cmake_directory_if_labels PREFIX)
-    get_target_property(target_labels mbed-os MBED_TARGET_LABELS)
-    foreach(key ${target_labels})
+    foreach(key ${MBED_TARGET_LABELS})
         if(NOT "${PREFIX}" STREQUAL "")
             string(PREPEND key ${PREFIX} "_")
         endif()