--- simon-0.4.0/CMakeLists.txt
+++ simon-0.4.0/CMakeLists.txt
@@ -59,11 +59,11 @@
 macro_optional_find_package(QAccessibilityClient)
 macro_log_feature(QAccessibilityClient_FOUND "qaccessibilityclient" "KDE client-side accessibility library" "https://projects.kde.org/projects/playground/accessibility/libkdeaccessibilityclient" FALSE "" "Required to enable ATSPI plugin.")
 
-find_package(Sphinxbase)
+macro_optional_find_package(Sphinxbase)
 macro_log_feature(SphinxBase_LIBRARIES "Sphinxbase"
   "Open source toolkit for speech recognition" "http://cmusphinx.sourceforge.net/"
   FALSE "" "Required to build Sphinx backend")
-find_package(Pocketsphinx)
+macro_optional_find_package(Pocketsphinx)
 macro_log_feature(POCKETSPHINX_LIBRARIES "PocketSphinx"
   "PocketSphinx is a small-footprint continuous speech recognition system"
   "http://cmusphinx.sourceforge.net/" FALSE ""