diff --git a/llms/openai/internal/openaiclient/openaiclient.go b/llms/openai/internal/openaiclient/openaiclient.go
index e0a09d1fb..a6dd25f18 100644
--- a/llms/openai/internal/openaiclient/openaiclient.go
+++ b/llms/openai/internal/openaiclient/openaiclient.go
@@ -225,7 +225,7 @@ func sanitizeHTTPError(err error) error {
 
 	// Check for context cancellation
 	if errors.Is(err, context.Canceled) {
-		return errors.New("request cancelled")
+		return context.Canceled
 	}
 
 	// Check for network timeout errors
diff --git a/llms/openai/internal/openaiclient/openaiclient_test.go b/llms/openai/internal/openaiclient/openaiclient_test.go
index a9d0f4140..be7513da5 100644
--- a/llms/openai/internal/openaiclient/openaiclient_test.go
+++ b/llms/openai/internal/openaiclient/openaiclient_test.go
@@ -374,8 +374,7 @@ func TestSanitizeHTTPError(t *testing.T) {
 	t.Run("context cancelled", func(t *testing.T) {
 		err := context.Canceled
 		sanitized := sanitizeHTTPError(err)
-		assert.Error(t, sanitized)
-		assert.Equal(t, "request cancelled", sanitized.Error())
+		assert.ErrorIs(t, sanitized, context.Canceled)
 	})
 
 	t.Run("network timeout", func(t *testing.T) {