diff --git a/tests/spec/Makefile.am b/tests/spec/Makefile.am
index d0cdd3e..47c81dd 100644
--- a/tests/spec/Makefile.am
+++ b/tests/spec/Makefile.am
@@ -9,7 +9,7 @@ oil: oil-link
 
 oil/bin/geesh: oil
 	echo "#!/bin/sh" > "$@"
-	echo "$(abs_top_builddir)/pre-inst-env geesh" >> "$@"
+	echo "$(abs_top_builddir)/pre-inst-env geesh "'"$$@"' >> "$@"
 	chmod a+x "$@"
 
 check: oil/bin/geesh ;