diff --git a/src/imagery/i.sentinel1.gdargeocode/i.sentinel1.gdargeocode.py b/src/imagery/i.sentinel1.gdargeocode/i.sentinel1.gdargeocode.py
index c6393468..e9a87f52 100755
--- a/src/imagery/i.sentinel1.gdargeocode/i.sentinel1.gdargeocode.py
+++ b/src/imagery/i.sentinel1.gdargeocode/i.sentinel1.gdargeocode.py
@@ -50,6 +50,7 @@
 
 # %option G_OPT_F_INPUT
 # %key: register_file
+# % required: no
 # % description: Path to register file for registering results in TGIS
 # %end