diff --git a/internal/backend/azure/azure_test.go b/internal/backend/azure/azure_test.go
index 9185406f8..0fab5da26 100644
--- a/internal/backend/azure/azure_test.go
+++ b/internal/backend/azure/azure_test.go
@@ -35,8 +35,11 @@ func newAzureTestSuite(t testing.TB) *test.Suite[azure.Config] {
 				return nil, err
 			}
 
-			cfg.AccountName = os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_NAME")
-			cfg.AccountKey = options.NewSecretString(os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_KEY"))
+			err = cfg.ApplyEnvironment("RESTIC_TEST_")
+			if err != nil {
+				return nil, err
+			}
+
 			cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
 			return cfg, nil
 		},
diff --git a/internal/backend/b2/b2_test.go b/internal/backend/b2/b2_test.go
index 312f9640d..8e982adda 100644
--- a/internal/backend/b2/b2_test.go
+++ b/internal/backend/b2/b2_test.go
@@ -10,7 +10,6 @@ import (
 	"github.com/restic/restic/internal/backend"
 	"github.com/restic/restic/internal/backend/b2"
 	"github.com/restic/restic/internal/backend/test"
-	"github.com/restic/restic/internal/options"
 	"github.com/restic/restic/internal/restic"
 
 	rtest "github.com/restic/restic/internal/test"
@@ -36,8 +35,11 @@ func newB2TestSuite(t testing.TB) *test.Suite[b2.Config] {
 				return nil, err
 			}
 
-			cfg.AccountID = os.Getenv("RESTIC_TEST_B2_ACCOUNT_ID")
-			cfg.Key = options.NewSecretString(os.Getenv("RESTIC_TEST_B2_ACCOUNT_KEY"))
+			err = cfg.ApplyEnvironment("RESTIC_TEST_")
+			if err != nil {
+				return nil, err
+			}
+
 			cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
 			return cfg, nil
 		},