diff --git a/free-sidecar/ContentView.swift b/free-sidecar/ContentView.swift
index bad6335..51bc740 100644
--- a/free-sidecar/ContentView.swift
+++ b/free-sidecar/ContentView.swift
@@ -139,7 +139,7 @@ struct ContentView: View {
                         .padding(.trailing, 20)
                 }.padding()
                 VStack {
-                    Text("8. Sign the patched SidecarCore (in Terminal):")
+                    Text("8. Sign the patched SidecarCore (in Terminal) (If you are on macOS Catalina 10.15.4+, please refer to step 8 of the README for special instructions):")
                     TextField("", text: $sign)
                         .font(.system(size: 10, design: .monospaced))
                         .padding(.leading, 20)