diff --git a/crypto/message_test.go b/crypto/message_test.go
index d751e701..bd304cf0 100644
--- a/crypto/message_test.go
+++ b/crypto/message_test.go
@@ -6,6 +6,7 @@ import (
 	"errors"
 	"io"
 	"os"
+	"strings"
 	"testing"
 	"time"
 
@@ -151,7 +152,7 @@ func TestTextMessageEncryptionWithNonCanonicalLinebreak(t *testing.T) {
 
 func TestTextMessageEncryptionWithCompression(t *testing.T) {
 	var message = NewPlainMessageFromString(
-		"The secret code is... 1, 2, 3, 4, 5. I repeat: the secret code is... 1, 2, 3, 4, 5",
+		strings.Repeat("The secret code is... 1, 2, 3, 4, 5. ", 20),
 	)
 
 	ciphertext, err := keyRingTestPublic.EncryptWithCompression(message, nil)
diff --git a/crypto/sessionkey_test.go b/crypto/sessionkey_test.go
index afd9ebd5..b94dab83 100644
--- a/crypto/sessionkey_test.go
+++ b/crypto/sessionkey_test.go
@@ -5,6 +5,7 @@ import (
 	"encoding/hex"
 	"errors"
 	"os"
+	"strings"
 	"testing"
 
 	"github.com/ProtonMail/gopenpgp/v2/constants"
@@ -320,7 +321,7 @@ func TestSessionKeyClear(t *testing.T) {
 
 func TestDataPacketEncryptionWithCompression(t *testing.T) {
 	var message = NewPlainMessageFromString(
-		"The secret code is... 1, 2, 3, 4, 5. I repeat: the secret code is... 1, 2, 3, 4, 5",
+		strings.Repeat("The secret code is... 1, 2, 3, 4, 5. ", 20),
 	)
 
 	// Encrypt data with session key