diff --git a/certdb/ocspstapling/ocspstapling_test.go b/certdb/ocspstapling/ocspstapling_test.go
index 279703179..964cc6e71 100644
--- a/certdb/ocspstapling/ocspstapling_test.go
+++ b/certdb/ocspstapling/ocspstapling_test.go
@@ -106,7 +106,7 @@ func TestStapleSCTList(t *testing.T) {
 			sctA.Timestamp == sctB.Timestamp &&
 			bytes.Equal(sctA.Extensions, sctB.Extensions) &&
 			sctA.Signature.Algorithm == sctB.Signature.Algorithm &&
-			bytes.Equal(sctA.Signature.Signature, sctA.Signature.Signature) {
+			bytes.Equal(sctA.Signature.Signature, sctB.Signature.Signature) {
 			return true
 		}
 		return false
diff --git a/helpers/helpers_test.go b/helpers/helpers_test.go
index bbc74d38e..c68dfe554 100644
--- a/helpers/helpers_test.go
+++ b/helpers/helpers_test.go
@@ -565,7 +565,7 @@ func sctEquals(sctA, sctB ct.SignedCertificateTimestamp) bool {
 		sctA.Timestamp == sctB.Timestamp &&
 		bytes.Equal(sctA.Extensions, sctB.Extensions) &&
 		sctA.Signature.Algorithm == sctB.Signature.Algorithm &&
-		bytes.Equal(sctA.Signature.Signature, sctA.Signature.Signature) {
+		bytes.Equal(sctA.Signature.Signature, sctB.Signature.Signature) {
 		return true
 	}
 	return false