diff --git a/hosts/common/programs/calls.nix b/hosts/common/programs/calls.nix
index a2a25cbe..ca5ac8c2 100644
--- a/hosts/common/programs/calls.nix
+++ b/hosts/common/programs/calls.nix
@@ -62,7 +62,9 @@ in
       # add --daemon to avoid showing UI on launch.
       #   note that no matter the flags, it returns to being a daemon whenever the UI is manually closed,
       #   revealed when launched.
-      command = "env G_MESSAGES_DEBUG=all gnome-calls";
+      # default latency is 10ms, which is too low and i get underruns on moby.
+      # 50ms is copied from dino, not at all tuned.
+      command = "env G_MESSAGES_DEBUG=all PULSE_LATENCY_MSEC=50 gnome-calls";
     };
   };
   programs.calls = lib.mkIf cfg.enabled {