diff --git a/src/tests/normal-tests/mixed.lsp b/src/tests/normal-tests/mixed.lsp
index cf0470a36..2816e8424 100644
--- a/src/tests/normal-tests/mixed.lsp
+++ b/src/tests/normal-tests/mixed.lsp
@@ -178,6 +178,7 @@
 ;;;; Created:  2016-09-07
 ;;;; Contains: External process interaction API
 ;;;;
+#-windows
 (test external-process.0001.run-program/wait/terminate
   (let ((p (nth-value 2 (ext:run-program #-windows "sleep"
                                          #+windows "timeout"