diff --git a/src/epics/util/Userspace_CMakeLists.cmake b/src/epics/util/Userspace_CMakeLists.cmake
index 5fd1b234a4b5378dab5886c9582e5bc2f33bf0d3..250faaab33fdd75184baeeaeed1c68f5a5bc87fa 100644
--- a/src/epics/util/Userspace_CMakeLists.cmake
+++ b/src/epics/util/Userspace_CMakeLists.cmake
@@ -18,6 +18,10 @@ set(LIB_NAME lib${MODEL_NAME})
 # Include generated FLAGS, options and INC dirs.
 include(${CMAKE_CURRENT_SOURCE_DIR}/UserspaceVars.cmake)
 
+if(${LIGO_INLINE})
+    list(APPEND CFLAGS "-DLIGO_INLINE=${LIGO_INLINE}")
+endif()
+
 if(${USE_STDLIB_MATH}) 
     list(APPEND CFLAGS "-DUSE_STDLIB_MATH=1") 
 endif()