diff --git a/pkgs/development/libraries/portmidi/default.nix b/pkgs/development/libraries/portmidi/default.nix
index 0fb9636bc2a1..bdc6a44f00b8 100644
--- a/pkgs/development/libraries/portmidi/default.nix
+++ b/pkgs/development/libraries/portmidi/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
   '';
 
   postInstall = let ext = stdenv.hostPlatform.extensions.sharedLibrary; in ''
-    ln -s libportmidi.${ext} "$out/lib/libporttime.${ext}"
+    ln -s libportmidi${ext} "$out/lib/libporttime${ext}"
   '';
 
   nativeBuildInputs = [ unzip cmake ];