diff --git a/rcl/CMakeLists.txt b/rcl/CMakeLists.txt
index 3baf6cb..f79fe59 100644
--- a/rcl/CMakeLists.txt
+++ b/rcl/CMakeLists.txt
@@ -39,7 +39,7 @@ macro(target)
 
   # Causes the visibility macros to use dllexport rather than dllimport,
   # which is appropriate when building the dll but not consuming it.
-  target_compile_definitions(${PROJECT_NAME}${target_suffix} PRIVATE "RCL_BUILDING_LIBRARY")
+  target_compile_definitions(${PROJECT_NAME}${target_suffix} PRIVATE "RCL_BUILDING_DLL")
 
   install(
     TARGETS ${PROJECT_NAME}${target_suffix}