diff --git a/lib/adapters/http.js b/lib/adapters/http.js
index 760efc3d..b309481c 100755
--- a/lib/adapters/http.js
+++ b/lib/adapters/http.js
@@ -264,7 +264,7 @@ export default isHttpAdapterSupported && function httpAdapter(config) {
       if (!headers.hasContentLength()) {
         try {
           const knownLength = await util.promisify(data.getLength).call(data);
-          headers.setContentLength(knownLength);
+          Number.isFinite(knownLength) && knownLength >= 0 && headers.setContentLength(knownLength);
           /*eslint no-empty:0*/
         } catch (e) {
         }