diff --git a/src/plugins/quota/quota-storage.c b/src/plugins/quota/quota-storage.c
index bf4b4c01bc..42c8ca7be0 100644
--- a/src/plugins/quota/quota-storage.c
+++ b/src/plugins/quota/quota-storage.c
@@ -291,7 +291,7 @@ quota_copy(struct mail_save_context *ctx, struct mail *mail)
 	const char *error;
 	if (quota_transaction_set_limits(qt, &error_res, &error) < 0 &&
 	    error_res != QUOTA_GET_RESULT_BACKGROUND_CALC)
-		i_error("Failed to set quota transaction limits: %s", error);
+		i_error("quota: %s", error);
 
 	if (qbox->module_ctx.super.copy(ctx, mail) < 0)
 		return -1;
@@ -352,7 +352,7 @@ quota_save_begin(struct mail_save_context *ctx, struct istream *input)
 	enum quota_get_result error_res;
 	if (quota_transaction_set_limits(qt, &error_res, &error) < 0 &&
 	    error_res != QUOTA_GET_RESULT_BACKGROUND_CALC)
-		i_error("Failed to set quota transaction limits: %s", error);
+		i_error("quota: %s", error);
 
 	return qbox->module_ctx.super.save_begin(ctx, input);
 }
diff --git a/src/plugins/quota/quota.c b/src/plugins/quota/quota.c
index d6086545f5..362ac20649 100644
--- a/src/plugins/quota/quota.c
+++ b/src/plugins/quota/quota.c
@@ -1308,11 +1308,8 @@ enum quota_alloc_result quota_try_alloc(struct quota_transaction_context *ctx,
 	const char *error;
 	enum quota_get_result error_res;
 
-	if (quota_transaction_set_limits(ctx, &error_res, &error) < 0) {
-		*error_r = t_strdup_printf(
-			"Failed to set quota transaction limits: %s", error);
+	if (quota_transaction_set_limits(ctx, &error_res, error_r) < 0)
 		return QUOTA_ALLOC_RESULT_TEMPFAIL;
-	}
 
 	if (ctx->no_quota_updates)
 		return QUOTA_ALLOC_RESULT_OK;
@@ -1353,13 +1350,9 @@ enum quota_alloc_result quota_test_alloc(struct quota_transaction_context *ctx,
 		return QUOTA_ALLOC_RESULT_TEMPFAIL;
 	}
 
-	const char *error;
 	enum quota_get_result error_res;
-	if (quota_transaction_set_limits(ctx, &error_res, &error) < 0) {
-		*error_r = t_strdup_printf(
-			"Failed to set quota transaction limits: %s", error);
+	if (quota_transaction_set_limits(ctx, &error_res, error_r) < 0)
 		return QUOTA_ALLOC_RESULT_TEMPFAIL;
-	}
 
 	uoff_t max_size = ctx->quota->set->max_mail_size;
 	if (max_size > 0 && size > max_size) {