diff --git a/meson.build b/meson.build
index 45eca206e..5b6aa1137 100644
--- a/meson.build
+++ b/meson.build
@@ -239,6 +239,7 @@ endif
 
 alsa_dep = dependency('alsa', version : '>= 1.0.24', required : get_option('alsa'))
 if alsa_dep.found()
+  cdata.set('HAVE_ALSA', 1)
   cdata.set('HAVE_ALSA_UCM', 1)
 endif