diff --git a/test/run b/test/run
index fe4ac847..7999d4fb 100755
--- a/test/run
+++ b/test/run
@@ -11,7 +11,7 @@ if [ -z "${BASH_IT}" ]; then
 fi
 
 if [ -z "$1" ]; then
-  test_dirs=( ${test_directory}/{bash_it,completion,install,lib,plugins,themes} )
+  test_dirs=( "${test_directory}"/{bash_it,completion,install,lib,plugins,themes} )
 else
   test_dirs=( "$1" )
 fi