diff --git a/single_ursim_control/config.py b/single_ursim_control/config.py
index 4b78878..a082c75 100644
--- a/single_ursim_control/config.py
+++ b/single_ursim_control/config.py
@@ -10,8 +10,8 @@ class Config:
     SYNC_TIMEOUT = os.environ.get("SYNC_TIMEOUT", None)  # Wait infinity by default
     ROBOT_ADDRESS = os.environ.get("ROBOT_ADDRESS")
     PROGRAM_URL = os.environ["PROGRAM_URL"]
-    DRY_RUN = ('--dry-run' in sys.argv) or bool(os.environ.get("DRY_RUN", False))
-    DEBUG = ('--debug' in sys.argv) or bool(os.environ.get("DEBUG", False))
+    DRY_RUN = ('--dry-run' in sys.argv) or bool(os.environ.get("DRY_RUN", "").upper() in ['YES', 'TRUE', '1'])
+    DEBUG = ('--debug' in sys.argv) or bool(os.environ.get("DEBUG", "").upper() in ['YES', 'TRUE', '1'])
     HTTP_ENABLE = ('--no-http' not in sys.argv) and \
                   bool(os.environ.get("HTTP_ENABLE", "").upper() not in ['NO', 'FALSE', '0'])
     HTTP_PORT = int(os.environ.get("HTTP_PORT", 8080))