diff --git a/etc/postinst.in b/etc/postinst.in
index dfb6f585a..f37f59f7d 100755
--- a/etc/postinst.in
+++ b/etc/postinst.in
@@ -14,7 +14,7 @@ mkdir -p @MAXSCALE_VARDIR@/cache/maxscale
 mkdir -p @MAXSCALE_VARDIR@/run/maxscale
 
 # Create MaxScale user
-if [ -f "/etc/passwd" -a "$(grep -c 'maxscale' /etc/passwd)" -eq 0 ]
+if [ -f "/etc/passwd" ] && [ "$(grep -c 'maxscale' /etc/passwd)" -eq 0 ]
 then
     useradd -r -U -s /bin/false maxscale
 fi
@@ -44,7 +44,7 @@ else
     echo "Could not find ldconfig file: @CMAKE_INSTALL_PREFIX@/@MAXSCALE_SHAREDIR@/maxscale.conf" >& 2
 fi
 
-if [-f @CMAKE_INSTALL_PREFIX@/@MAXSCALE_SHAREDIR@/maxscale.service ]
+if [ -f @CMAKE_INSTALL_PREFIX@/@MAXSCALE_SHAREDIR@/maxscale.service ]
 then
     if [ -d "/lib/systemd/system"  ]
     then