diff --git a/tests/LinuxTest.py b/tests/LinuxTest.py
index 5651e0ca1..75e1870e3 100644
--- a/tests/LinuxTest.py
+++ b/tests/LinuxTest.py
@@ -122,4 +122,4 @@ class LinuxTest(Test) :
         return run("docker exec linux-" + distro + " /bin/bash -c \"" + cmd_linux + "\"", shell=True)
 
     def docker_cp(distro, src, dst) :
-        return run("docker cp " + src + " linux-" + distro + ":" + dst)
\ No newline at end of file
+        return run("docker cp " + src + " linux-" + distro + ":" + dst, shell=True)
\ No newline at end of file