diff --git a/packages/build/src/log/logger.ts b/packages/build/src/log/logger.ts
index 1aa33cad9f..b9dad99ec4 100644
--- a/packages/build/src/log/logger.ts
+++ b/packages/build/src/log/logger.ts
@@ -3,6 +3,8 @@ import { createWriteStream } from 'fs'
 import figures from 'figures'
 import indentString from 'indent-string'
 
+import type { SystemLogger } from '../plugins_core/types.js'
+
 import { getHeader } from './header.js'
 import { OutputFlusher } from './output_flusher.js'
 import { serializeArray, serializeObject } from './serialize.js'
@@ -162,7 +164,7 @@ export const getSystemLogger = function (
   debug: boolean,
   /** A system log file descriptor, if non is provided it will be a noop logger */
   systemLogFile?: number,
-): (...args: any[]) => void {
+): SystemLogger {
   // If the `debug` flag is used, we return a function that pipes system logs
   // to the regular logger, as the intention is for them to end up in stdout.
   if (debug) {
diff --git a/packages/build/src/plugins_core/blobs_upload/index.ts b/packages/build/src/plugins_core/blobs_upload/index.ts
index f9fc5e9619..74c36b08ab 100644
--- a/packages/build/src/plugins_core/blobs_upload/index.ts
+++ b/packages/build/src/plugins_core/blobs_upload/index.ts
@@ -4,18 +4,17 @@ import { getDeployStore } from '@netlify/blobs'
 import pMap from 'p-map'
 import semver from 'semver'
 
-import { log, logError } from '../../log/logger.js'
+import { logError } from '../../log/logger.js'
 import { getFileWithMetadata, getKeysToUpload, scanForBlobs } from '../../utils/blobs.js'
 import { type CoreStep, type CoreStepCondition, type CoreStepFunction } from '../types.js'
 
 const coreStep: CoreStepFunction = async function ({
-  debug,
   logs,
   deployId,
   buildDir,
-  quiet,
   packagePath,
   constants: { SITE_ID, NETLIFY_API_TOKEN, NETLIFY_API_HOST },
+  systemLog,
 }) {
   // This should never happen due to the condition check
   if (!deployId || !NETLIFY_API_TOKEN) {
@@ -41,9 +40,8 @@ const coreStep: CoreStepFunction = async function ({
 
   // We checked earlier, but let's be extra safe
   if (blobs === null) {
-    if (!quiet) {
-      log(logs, 'No blobs to upload to deploy store.')
-    }
+    systemLog('No blobs to upload to deploy store.')
+
     return {}
   }
 
@@ -57,23 +55,19 @@ const coreStep: CoreStepFunction = async function ({
   const keys = await getKeysToUpload(blobs.directory)
 
   if (keys.length === 0) {
-    if (!quiet) {
-      log(logs, 'No blobs to upload to deploy store.')
-    }
+    systemLog('No blobs to upload to deploy store.')
+
     return {}
   }
 
-  if (!quiet) {
-    log(logs, `Uploading ${keys.length} blobs to deploy store...`)
-  }
+  systemLog(`Uploading ${keys.length} blobs to deploy store`)
 
   try {
     await pMap(
       keys,
       async (key: string) => {
-        if (debug && !quiet) {
-          log(logs, `- Uploading blob ${key}`, { indent: true })
-        }
+        systemLog(`Uploading blob ${key}`)
+
         const { data, metadata } = await getFileWithMetadata(blobs.directory, key)
         await blobStore.set(key, data, { metadata })
       },
@@ -85,9 +79,7 @@ const coreStep: CoreStepFunction = async function ({
     throw new Error(`Failed while uploading blobs to deploy store`)
   }
 
-  if (!quiet) {
-    log(logs, `Done uploading blobs to deploy store.`)
-  }
+  systemLog(`Done uploading blobs to deploy store.`)
 
   return {}
 }
diff --git a/packages/build/src/plugins_core/types.ts b/packages/build/src/plugins_core/types.ts
index 83e4a9c30c..470a4ce39d 100644
--- a/packages/build/src/plugins_core/types.ts
+++ b/packages/build/src/plugins_core/types.ts
@@ -21,9 +21,8 @@ export type CoreStepFunctionArgs = {
   quiet?: boolean
   debug?: boolean
   logs?: BufferedLogs
-  systemLog?: (message: unknown) => void
+  systemLog: SystemLogger
   edgeFunctionsBootstrapURL?: string
-  // systemLog(...args: any[]): void
   featureFlags?: Record<string, any>
 
   netlifyConfig: NetlifyConfig