diff --git a/src/matrix/common.js b/src/matrix/common.js
index abd74a57..ba7876ed 100644
--- a/src/matrix/common.js
+++ b/src/matrix/common.js
@@ -22,16 +22,16 @@ export function makeTxnId() {
 }
 
 export function isTxnId(txnId) {
-    return txnId.startsWith("t") && txnId.length === 15;
+	return txnId.startsWith("t") && txnId.length === 15;
 }
 
 export function tests() {
-    return {
-        "isTxnId succeeds on result of makeTxnId": assert => {
-            assert(isTxnId(makeTxnId()));
-        },
-        "isTxnId fails on event id": assert => {
-            assert(!isTxnId("$yS_n5n3cIO2aTtek0_2ZSlv-7g4YYR2zKrk2mFCW_rm"));
-        },
-    }
+	return {
+		"isTxnId succeeds on result of makeTxnId": assert => {
+			assert(isTxnId(makeTxnId()));
+		},
+		"isTxnId fails on event id": assert => {
+			assert(!isTxnId("$yS_n5n3cIO2aTtek0_2ZSlv-7g4YYR2zKrk2mFCW_rm"));
+		},
+	}
 }