diff --git a/inverter.pl b/inverter.pl
index 72dd1c4..b515abc 100755
--- a/inverter.pl
+++ b/inverter.pl
@@ -318,7 +318,7 @@ $config->define( "data_errmode_index=s"  );
 $config->define( "data_errmode_descr=s"  );
 
 # fill variables by reading configuration file
-$config->file( "config.ini" ) || die "FAILED to open and/or read config file: config.ini\n";
+$config->file( "/opt/inverter/config.ini" ) || die "FAILED to open and/or read config file: config.ini\n";
 
 if ($config->flags_debug) {
   print "debug=" . $config->flags_debug ;