diff --git a/source/app.d b/source/app.d
index 87c2212..cd0f795 100644
--- a/source/app.d
+++ b/source/app.d
@@ -40,6 +40,8 @@ enum dsId = -2;
 __gshared ADI v1Adi;
 __gshared Device v1Device;
 
+__gshared Duration timeout;
+
 int main(string[] args) {
 	debug {
 		configureLoggingProvider(new shared DefaultProvider(true, Levels.DEBUG));
@@ -57,15 +59,20 @@ int main(string[] args) {
 	string certificateChainPath = null;
 	string privateKeyPath = null;
 
+	long timeoutMsecs = 3000;
+
 	auto helpInformation = getopt(
 		args,
 		"n|host", format!"The hostname to bind to (default: %s)"(hostname), &hostname,
 		"p|port", format!"The port to bind to (default: %s)"(port), &port,
 		"a|adi-path", format!"Where the provisioning information should be stored on the computer for anisette-v1 backwards compat (default: %s)"(configurationPath), &configurationPath,
+		"timeout", format!"Timeout duration for Anisette V3 in milliseconds (default: %d)"(timeoutMsecs), &timeoutMsecs,
 		"private-key", "Path to the PEM-formatted private key file for HTTPS support (requires --cert-chain)", &certificateChainPath,
 		"cert-chain", "Path to the PEM-formatted certificate chain file for HTTPS support (requires --private-key)", &privateKeyPath,
 	);
 
+	timeout = dur!"msecs"(timeoutMsecs);
+
 	if ((certificateChainPath && !privateKeyPath) || (!certificateChainPath && privateKeyPath)) {
 		log.error("--certificate-chain and --private-key must both be specified for HTTPS support (they can be both be in the same file though).");
 		return 1;
@@ -285,8 +292,6 @@ class AnisetteService {
 		}
 	}
 
-	enum timeout = dur!"msecs"(1250);
-
 	@method(HTTPMethod.GET)
 	@path("/v3/provisioning_session")
 	void provisionSession(scope WebSocket socket) {