diff --git a/src/fr/devinsy/statoolinfos/StatoolInfosLauncher.java b/src/fr/devinsy/statoolinfos/StatoolInfosLauncher.java
index d07b413..cc9fb29 100644
--- a/src/fr/devinsy/statoolinfos/StatoolInfosLauncher.java
+++ b/src/fr/devinsy/statoolinfos/StatoolInfosLauncher.java
@@ -71,13 +71,31 @@ public final class StatoolInfosLauncher
             }
             else
             {
+                //
+                Level logEnvLevel = Level.getLevel(System.getenv().get("LOG4J_LEVEL"));
+                Level logPropertyLevel = Level.getLevel(System.getProperty("log4j2.level"));
+
+                Level level;
+                if (logPropertyLevel != null)
+                {
+                    level = logPropertyLevel;
+                }
+                else if (logEnvLevel != null)
+                {
+                    level = logEnvLevel;
+                }
+                else
+                {
+                    level = Level.INFO;
+                }
+
                 // Build a custom default log configuration.
                 ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory.newConfigurationBuilder();
                 builder.setStatusLevel(Level.ERROR);
                 builder.setConfigurationName("CustomDefaultLogger");
                 AppenderComponentBuilder appenderBuilder = builder.newAppender("Console", "CONSOLE").addAttribute("target", ConsoleAppender.Target.SYSTEM_OUT);
                 appenderBuilder.add(builder.newLayout("PatternLayout").addAttribute("pattern", "%m%n"));
-                RootLoggerComponentBuilder rootLogger = builder.newRootLogger(Level.INFO);
+                RootLoggerComponentBuilder rootLogger = builder.newRootLogger(level);
                 rootLogger.add(builder.newAppenderRef("Console"));
                 builder.add(appenderBuilder);
                 builder.add(rootLogger);