diff --git a/AMDiS/postrm.in b/AMDiS/postrm.in
index e4d08804d51d544f3b7e01d7782970acd732c37b..a99eda1e05cf452819fa2bce5764806d29b8144d 100644
--- a/AMDiS/postrm.in
+++ b/AMDiS/postrm.in
@@ -1,5 +1,5 @@
 #!/bin/sh
-if "$1" = "upgrade" ; then 
+if test "$1" = "upgrade" ; then 
   exit 0
 fi
 NEWDIRS_SEMI="@deb_add_dirs@"