diff --git a/cmake/modules/KatieBuildMacros.cmake b/cmake/modules/KatieBuildMacros.cmake
index 41666c1a1..496692c9a 100644
--- a/cmake/modules/KatieBuildMacros.cmake
+++ b/cmake/modules/KatieBuildMacros.cmake
@@ -71,7 +71,7 @@ macro(KATIE_GENERATE_PACKAGE FORTARGET REQUIRES)
     # all components require the core component
     if("${FORTARGET}" STREQUAL "KtCore")
         katie_string_wrap("${KATIE_DEFINITIONS}" KATIE_DEFINITIONS)
-        set(PACKAGE_FLAGS "${KATIE_DEFINITIONS}")
+        set(PACKAGE_FLAGS "${PACKAGE_FLAGS} ${KATIE_DEFINITIONS}")
     endif()
     configure_file(
         ${CMAKE_SOURCE_DIR}/cmake/pkgconfig.cmake