1 files changed, 1 insertions, 0 deletions
diff --git a/Alc/ALc.c b/Alc/ALc.c
index 26219752..97d62812 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -725,6 +725,7 @@ static const ALchar alExtList[] =
     "AL_SOFT_deferred_updates "
     "AL_SOFT_direct_channels "
     "AL_SOFTX_events "
+    "AL_SOFTX_filter_gain_ex "
     "AL_SOFT_gain_clamp_ex "
     "AL_SOFT_loop_points "
     "AL_SOFTX_map_buffer "