diff --git a/services/clsi/app/js/UrlFetcher.js b/services/clsi/app/js/UrlFetcher.js
index b3ed8c465d..adfb55da4c 100644
--- a/services/clsi/app/js/UrlFetcher.js
+++ b/services/clsi/app/js/UrlFetcher.js
@@ -42,9 +42,12 @@ module.exports = UrlFetcher = {
       return (_callback = function () {})
     }
 
-    if (settings.filestoreDomainOveride != null) {
-      const p = URL.parse(url).path
-      url = `${settings.filestoreDomainOveride}${p}`
+    const u = URL.parse(url)
+    if (
+      settings.filestoreDomainOveride &&
+      u.host !== settings.apis.clsiPerf.host
+    ) {
+      url = `${settings.filestoreDomainOveride}${u.path}`
     }
     var timeoutHandler = setTimeout(
       function () {
diff --git a/services/clsi/config/settings.defaults.js b/services/clsi/config/settings.defaults.js
index ae6086f1d4..b53f871b6d 100644
--- a/services/clsi/config/settings.defaults.js
+++ b/services/clsi/config/settings.defaults.js
@@ -51,6 +51,11 @@ module.exports = {
   apis: {
     clsi: {
       url: `http://${process.env.CLSI_HOST || 'localhost'}:3013`
+    },
+    clsiPerf: {
+      host: `${process.env.CLSI_PERF_HOST || 'localhost'}:${
+        process.env.CLSI_PERF_PORT || '3043'
+      }`
     }
   },
 
diff --git a/services/clsi/test/unit/js/UrlFetcherTests.js b/services/clsi/test/unit/js/UrlFetcherTests.js
index 238e5d8aa9..6a5bc1f3dd 100644
--- a/services/clsi/test/unit/js/UrlFetcherTests.js
+++ b/services/clsi/test/unit/js/UrlFetcherTests.js
@@ -24,7 +24,13 @@ describe('UrlFetcher', function () {
           defaults: (this.defaults = sinon.stub().returns((this.request = {})))
         },
         fs: (this.fs = {}),
-        'settings-sharelatex': (this.settings = {})
+        'settings-sharelatex': (this.settings = {
+          apis: {
+            clsiPerf: {
+              host: 'localhost:3043'
+            }
+          }
+        })
       }
     }))
   })
@@ -94,6 +100,19 @@ describe('UrlFetcher', function () {
         return this.fileStream.emit('finish')
       })
 
+      it('should not use override clsiPerf domain when filestoreDomainOveride is set', function (done) {
+        this.settings.filestoreDomainOveride = '192.11.11.11'
+        const url = 'http://localhost:3043/file/here?query=string'
+        this.UrlFetcher.pipeUrlToFile(url, this.path, () => {
+          this.request.get.args[0][0].url.should.equal(url)
+          done()
+        })
+        this.res = { statusCode: 200 }
+        this.urlStream.emit('response', this.res)
+        this.urlStream.emit('end')
+        this.fileStream.emit('finish')
+      })
+
       return it('should use override domain when filestoreDomainOveride is set', function (done) {
         this.settings.filestoreDomainOveride = '192.11.11.11'
         this.UrlFetcher.pipeUrlToFile(this.url, this.path, () => {