diff --git a/Formula/e/exult.rb b/Formula/e/exult.rb
index 3cdf4fa3fe96..f7bbbfbe94e9 100644
--- a/Formula/e/exult.rb
+++ b/Formula/e/exult.rb
@@ -32,6 +32,10 @@ class Exult < Formula
 
   uses_from_macos "zlib"
 
+  on_linux do
+    depends_on "alsa-lib"
+  end
+
   def install
     system "autoreconf", "--force", "--install", "--verbose"