diff --git a/CMakeLists.txt b/CMakeLists.txt
index 361f0ab2..46db37a6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -163,6 +163,7 @@ if(ENABLE_DRAFTS)
   message(STATUS "Building draft classes and methods")
   option(ENABLE_WS "Enable WebSocket transport" ON)
   option(ENABLE_RADIX_TREE "Use radix tree implementation to manage subscriptions" ON)
+  set(pkg_config_defines "-DZMQ_BUILD_DRAFT_API=1")
 else()
   message(STATUS "Not building draft classes and methods")
   option(ENABLE_WS "Enable WebSocket transport" OFF)
@@ -1464,7 +1465,6 @@ foreach(target ${build_targets})
 
   if(ENABLE_DRAFTS)
     target_compile_definitions(${target} PUBLIC ZMQ_BUILD_DRAFT_API)
-    set(pkg_config_defines "-DZMQ_BUILD_DRAFT_API=1")
   endif()
 endforeach()