diff --git a/server/rotation.go b/server/rotation.go
index 63c28c15..b7dd8116 100644
--- a/server/rotation.go
+++ b/server/rotation.go
@@ -25,7 +25,7 @@ type rotationStrategy struct {
 	rotationFrequency time.Duration
 
 	// After being rotated how long should the key be kept around for validating
-	// signatues?
+	// signatures?
 	idTokenValidFor time.Duration
 
 	// Keys are always RSA keys. Though cryptopasta recommends ECDSA keys, not every