diff --git a/pkgs/development/libraries/portaudio/default.nix b/pkgs/development/libraries/portaudio/default.nix
index 68780a162bb8..c1c76a900175 100644
--- a/pkgs/development/libraries/portaudio/default.nix
+++ b/pkgs/development/libraries/portaudio/default.nix
@@ -11,7 +11,7 @@
 
 stdenv.mkDerivation rec {
   pname = "portaudio";
-  version =  "190700_20210406";
+  version = "190700_20210406";
 
   src = fetchurl {
     url = "http://files.portaudio.com/archives/pa_stable_v${version}.tgz";