diff --git a/hw/bsp/family_support.cmake b/hw/bsp/family_support.cmake
index fdcd9a983..d80b54ef8 100644
--- a/hw/bsp/family_support.cmake
+++ b/hw/bsp/family_support.cmake
@@ -4,6 +4,7 @@ include(CMakePrintHelpers)
 
 # TOP is path to root directory
 set(TOP "${CMAKE_CURRENT_LIST_DIR}/../..")
+get_filename_component(TOP ${TOP} ABSOLUTE)
 
 # Default to gcc
 if (NOT DEFINED TOOLCHAIN)