diff --git a/Formula/s/synergy-core.rb b/Formula/s/synergy-core.rb
index 02b295436504..f2fc5c401eaa 100644
--- a/Formula/s/synergy-core.rb
+++ b/Formula/s/synergy-core.rb
@@ -51,7 +51,13 @@ class SynergyCore < Formula
     depends_on "gdk-pixbuf"
     depends_on "glib"
     depends_on "libnotify"
+    depends_on "libx11"
+    depends_on "libxext"
+    depends_on "libxi"
+    depends_on "libxinerama"
     depends_on "libxkbfile"
+    depends_on "libxrandr"
+    depends_on "libxtst"
   end
 
   fails_with gcc: "5" do