diff --git a/check_systemdunit b/check_systemdunit
index c54b275cb87e07b297935aa24ec8b9a9b1e826c7..aeb35b1b79e65487bb433a88e4a6be1bc881bfd8 100755
--- a/check_systemdunit
+++ b/check_systemdunit
@@ -11,11 +11,12 @@
 # 2020-09-18  v1.4  <axel.hahn@unibe.ch>  replace pipes in systemctl status output
 # 2020-10-20  v1.5  <axel.hahn@unibe.ch>  remove special chars from systemd status
 # 2020-10-23  v1.6  <axel.hahn@unibe.ch>  handle units with multiple instrances
+# 2020-11-03  v1.7  <axel.hahn@unibe.ch>  autodetect multiple instances without @ char in unit name
 # ================================================================================
 
 . $( dirname $0 )/inc_pluginfunctions
 
-export self_APPVERSION=1.6
+export self_APPVERSION=1.7
 
 # ----------------------------------------------------------------------
 # FUNCTIONS
@@ -151,9 +152,8 @@ typeset -i _iActive;    _iActive=$( grep -c "Active: active (running) " <<< "${_
 if [ $_iActive -eq 0 ]; then
   ph.setStatus critical
 else
-  # when unit contains a @ char and * then check multiple instances of a service
-  if grep "@\*" <<< "$_unit" >/dev/null; then
-    typeset -i _iInstances; _iInstances=$( grep -c "Loaded: .*@" <<< "${_data}" )
+  typeset -i _iInstances; _iInstances=$( grep -c "Loaded: " <<< "${_data}" )
+  if [ $_iInstances -gt 0 ]; then
 
     _status="$_iActive of $_iInstances ${_unit} units are active"
     _out="$_data"
diff --git a/docs/20_Checks/check_systemdunit.md b/docs/20_Checks/check_systemdunit.md
index 884ccf92fa44f7f1fe5443fee82b15aee96a9c86..3148753531f6734b18421942c6490b3158655cf6 100644
--- a/docs/20_Checks/check_systemdunit.md
+++ b/docs/20_Checks/check_systemdunit.md
@@ -16,7 +16,7 @@ A unit is everything listed by systemctl command - services, timers, targets, ..
 ______________________________________________________________________
 
 CHECK_SYSTEMDUNIT
-v1.6
+v1.7
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
@@ -139,14 +139,14 @@ Here are a few examples for services with regex:
 
 ### Check a service with multiple instances
 
-Systemd services with multiple instances contain an @ char.
-In the list of the systemctl command the @ char is followed by a number of the instance.
+Systemd services with multiple instances can be detected automatically.
+In the list of the systemctl command the an instance by a number of the instance in the unit name.
 
 #### All instances
 
-To check if all instances are running use ``@*`` at the end of the servicename (like you would do with ``systemctl status myservice@*``).
+To check if all instances are running use ``*`` at the end of the servicename (like you would do with ``systemctl status myservice*``).
 
-The command ``check_systemdunit myservice@*`` will return a status line how many active and existing instanecs were found:
+The command ``check_systemdunit myservice*`` will return a status line how many active and existing instanecs were found:
 
 ```txt
 OK: 4 of 4 myservice@* units are active
@@ -155,6 +155,6 @@ OK: 4 of 4 myservice@* units are active
 
 #### A single instance
 
-To check if all instances are running use ``@[number]`` at the end of the servicename.
+To check if all instances are running use ``myservice[number]`` at the end of the servicename.
 
-The command ``check_systemdunit myservice@2`` checks the 2nd instance. It is handled like single service check.
+The command ``check_systemdunit myservice2`` checks the 2nd instance. It is handled like single service check.
diff --git a/inc_pluginfunctions b/inc_pluginfunctions
index d21ca196822a00f688de9ef09aa18fab94a8f002..3f64983a8793b37c0a1f954a0b70b99706323170 100644
--- a/inc_pluginfunctions
+++ b/inc_pluginfunctions
@@ -330,7 +330,7 @@ function ph.toUnit(){
     test $_digits -gt 0 && _dots=$( yes "." 2>/dev/null | head -$_digits | tr -d "\n" )
     test $_digits -gt 0 && _bc+=" -l | grep -o '.*\\.${_dots}'"
 
-    echo "$(echo "$_value" | tr -d "[:alpha:]" )*${_multiply}/$_divisor" | eval "$_bc" | sed "s#^\.#0.#"
+    echo "$(echo "$_value" | tr -d "[:alpha:]" )*( ${_multiply}/$_divisor )" | eval "$_bc" | sed "s#^\.#0.#"
     
 }