diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb6f787..5ef5dff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ find_package(MBE REQUIRED)
 find_package(ITPP REQUIRED)
 find_package(RTLSDR)
 find_package(Curses REQUIRED) 
-find_package(PULSEAUDIO)
+find_package(PULSEAUDIO REQUIRED)
 
 include_directories(SYSTEM ${LIBSNDFILE_INCLUDE_DIR} ${MBE_INCLUDE_DIR} ${ITPP_INCLUDE_DIR} ${PULSEAUDIO_INCLUDE_DIRS} ${CURSES_INCLUDE_DIR})
 set(LIBS ${MBE_LIBRARY} ${LIBSNDFILE_LIBRARY} ${ITPP_LIBRARY} ${PULSEAUDIO_SIMPLE_LIBRARY} ${CURSES_LIBRARY})