diff --git a/windows/cygwin.ps1 b/windows/cygwin.ps1
index 0681830a..74ae2932 100755
--- a/windows/cygwin.ps1
+++ b/windows/cygwin.ps1
@@ -48,8 +48,8 @@ try {
 		Invoke-WebRequest ${URL}/${Setup}.sig `
 		    -OutFile ${Cygwin}\${Setup}.sig
 	}
-	& $GPG --list-keys
-	& $GPG --quiet --no-default-keyring `
+	& $GPG --debug-all --list-keys
+	& $GPG --debug-all --quiet --no-default-keyring `
 	    --keyring ${PSScriptRoot}/cygwin.gpg `
 	    --verify ${Cygwin}\${Setup}.sig ${Cygwin}\${Setup}
 	if ($LastExitCode -ne 0) {