diff --git a/lib/scm_breeze.sh b/lib/scm_breeze.sh
index dc9ba34..aad4972 100644
--- a/lib/scm_breeze.sh
+++ b/lib/scm_breeze.sh
@@ -25,6 +25,8 @@ update_scm_breeze() {
 }
 
 _create_or_patch_scmbrc() {
+  testfunc() { echo 'i should exist after updating'; }
+
   # Create or attempt to patch '~/.*.scmbrc' files.
   patchfile=$(mktemp)
   for scm in git; do