diff --git a/libguile/guile-snarf.in b/libguile/guile-snarf.in
index c5adf9aba..351f1f4f6 100644
--- a/libguile/guile-snarf.in
+++ b/libguile/guile-snarf.in
@@ -1,4 +1,4 @@
 #!/bin/sh
 # Extract the initialization actions for builtin things.
 
-@CPP@ -DSCM_MAGIC_SNARFER $* | grep "^ *% *% *%" | sed -e "s/^ *% *% *%//"
+@CPP@ -DSCM_MAGIC_SNARFER "$@" | grep "^ *% *% *%" | sed -e "s/^ *% *% *%//"