diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bca783b2a..2cae38acd 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -709,10 +709,10 @@ optional_source(HAVE_SPOTIFY
     internet/spotifyservice.h
     internet/spotifysettingspage.h
     resolvers/spotifyresolver.h
-  INCLUDE_DIRECTORIES
-    ${QCA_INCLUDE_DIRS}
 )
 
+optional_source(HAVE_QCA INCLUDE_DIRECTORIES ${QCA_INCLUDE_DIRS})
+
 # Platform specific - OS X
 optional_source(APPLE
   INCLUDE_DIRECTORIES