diff --git a/share/spack/spack-completion.bash b/share/spack/spack-completion.bash
index 09f7f3c03fe..51f586f38ce 100755
--- a/share/spack/spack-completion.bash
+++ b/share/spack/spack-completion.bash
@@ -1469,7 +1469,7 @@ _spack_test() {
     then
         SPACK_COMPREPLY="-h --help --keep-stage --log-format --log-file --cdash-upload-url --cdash-build --cdash-site --cdash-track --cdash-buildstamp --help-cdash --smoke --capability --clean --dirty"
     else
-        _all_packages
+        _installed_packages
     fi
 }