diff --git a/gpm.spec b/gpm.spec
index 7263476..5b5b4b4 100644
--- a/gpm.spec
+++ b/gpm.spec
@@ -106,7 +106,7 @@ rm -rf %{buildroot}
 
 %preun
 %ifnarch s390 s390x   
-if [ $1 -eq 0 ]; then
+if [ "$1" = "0" ]; then
     /sbin/service gpm stop >/dev/null 2>&1
     /sbin/chkconfig --del gpm
 fi
@@ -115,7 +115,7 @@ fi
 
 %postun
 %ifnarch s390 s390x
-if [ $1 -ge 1 ]; then
+if [ "$1" -ge "1" ]; then
     /sbin/service gpm condrestart >/dev/null 2>&1
 fi
 %endif