diff --git a/chain-abstraction/interfaces.go b/chain-abstraction/interfaces.go
index 32fbba0ce..8add36773 100644
--- a/chain-abstraction/interfaces.go
+++ b/chain-abstraction/interfaces.go
@@ -405,7 +405,7 @@ type ReadOnlyEdge interface {
 	// The inherited timer from the edge's children or claiming edges based on the latest block number.
 	// NOT reorg safe.
 	LatestInheritedTimer(ctx context.Context) (InheritedTimer, error)
-	// The inherited timer from the edge's children or claiming edges based on the the safe block number.
+	// The inherited timer from the edge's children or claiming edges based on the safe block number.
 	SafeHeadInheritedTimer(ctx context.Context) (InheritedTimer, error)
 	// Whether or not an edge has rivals.
 	HasRival(ctx context.Context) (bool, error)
diff --git a/testing/endtoend/e2e_crash_test.go b/testing/endtoend/e2e_crash_test.go
index 68d411d5b..4b1f11f01 100644
--- a/testing/endtoend/e2e_crash_test.go
+++ b/testing/endtoend/e2e_crash_test.go
@@ -221,7 +221,7 @@ func TestEndToEnd_HonestValidatorCrashes(t *testing.T) {
 
 				isChallengeChild := parent.FirstChildBlock > 0 && parent.SecondChildBlock > 0
 				if !isChallengeChild {
-					// Assertion must be be a challenge child.
+					// Assertion must be a challenge child.
 					continue
 				}
 				// We expect the honest party to have confirmed it.
diff --git a/testing/mocks/state-provider/layer2_state_provider.go b/testing/mocks/state-provider/layer2_state_provider.go
index 35c63d312..49a391753 100644
--- a/testing/mocks/state-provider/layer2_state_provider.go
+++ b/testing/mocks/state-provider/layer2_state_provider.go
@@ -3,7 +3,7 @@
 // https://github.com/offchainlabs/bold/blob/main/LICENSE.md
 
 // Package stateprovider defines smarter mocks for testing purposes that can
-// simulate a layer 2 state provider and and layer 2 state execution.
+// simulate a layer 2 state provider and layer 2 state execution.
 package stateprovider
 
 import (