diff --git a/cmake/Modules/MacroQbtCommonConfig.cmake b/cmake/Modules/MacroQbtCommonConfig.cmake
index 391395bda..610db40e8 100644
--- a/cmake/Modules/MacroQbtCommonConfig.cmake
+++ b/cmake/Modules/MacroQbtCommonConfig.cmake
@@ -90,4 +90,7 @@ macro(qbt_common_config)
         )
     endif()
 
+    if (LibtorrentRasterbar_VERSION VERSION_GREATER_EQUAL ${minLibtorrentVersion})
+        target_compile_definitions(qbt_common_cfg INTERFACE QBT_USES_LIBTORRENT2)
+    endif()
 endmacro(qbt_common_config)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 843b72fb9..d22c93a27 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -36,7 +36,6 @@ endmacro()
 find_libtorrent(${minLibtorrent1Version})
 if (LibtorrentRasterbar_FOUND AND (LibtorrentRasterbar_VERSION VERSION_GREATER_EQUAL 2.0))
     find_libtorrent(${minLibtorrentVersion})
-    target_compile_definitions(qbt_common_cfg PUBLIC QBT_USES_LIBTORRENT2)
 endif()
 
 # force variable type so that it always shows up in ccmake/cmake-gui frontends