diff --git a/data/helpers.d/getopts b/data/helpers.d/getopts
index 6d600e207..efaa8d065 100644
--- a/data/helpers.d/getopts
+++ b/data/helpers.d/getopts
@@ -53,33 +53,33 @@ ynh_handle_getopts_args () {
 
 		# For each option in the array, reduce to short options for getopts (e.g. for [u]=user, --user will be -u)
 		# And built parameters string for getopts
-		# ${!args_array[@]} is the list of all keys in the array (A key is 'u' in [u]=user, user is a value)
+		# ${!args_array[@]} is the list of all option_flags in the array (An option_flag is 'u' in [u]=user, user is a value)
 		local getopts_parameters=""
-		local key=""
-		for key in "${!args_array[@]}"
+		local option_flag=""
+		for option_flag in "${!args_array[@]}"
 		do
-			# Concatenate each keys of the array to build the string of arguments for getopts
+			# Concatenate each option_flags of the array to build the string of arguments for getopts
 			# Will looks like 'abcd' for -a -b -c -d
-			# If the value of a key finish by =, it's an option with additionnal values. (e.g. --user bob or -u bob)
-			# Check the last character of the value associate to the key
-			if [ "${args_array[$key]: -1}" = "=" ]
+			# If the value of an option_flag finish by =, it's an option with additionnal values. (e.g. --user bob or -u bob)
+			# Check the last character of the value associate to the option_flag
+			if [ "${args_array[$option_flag]: -1}" = "=" ]
 			then
 				# For an option with additionnal values, add a ':' after the letter for getopts.
-				getopts_parameters="${getopts_parameters}${key}:"
+				getopts_parameters="${getopts_parameters}${option_flag}:"
 			else
-				getopts_parameters="${getopts_parameters}${key}"
+				getopts_parameters="${getopts_parameters}${option_flag}"
 			fi
 			# Check each argument given to the function
 			local arg=""
 			# ${#arguments[@]} is the size of the array
 			for arg in `seq 0 $(( ${#arguments[@]} - 1 ))`
 			do
-				# And replace long option (value of the key) by the short option, the key itself
+				# And replace long option (value of the option_flag) by the short option, the option_flag itself
 				# (e.g. for [u]=user, --user will be -u)
 				# Replace long option with =
-				arguments[arg]="${arguments[arg]//--${args_array[$key]}/-${key} }"
+				arguments[arg]="${arguments[arg]//--${args_array[$option_flag]}/-${option_flag} }"
 				# And long option without =
-				arguments[arg]="${arguments[arg]//--${args_array[$key]%=}/-${key}}"
+				arguments[arg]="${arguments[arg]//--${args_array[$option_flag]%=}/-${option_flag}}"
 			done
 		done
 
@@ -98,10 +98,10 @@ ynh_handle_getopts_args () {
 
 				if [ "$parameter" = "?" ]
 				then
-					ynh_die "Invalid argument: -${OPTARG:-}"
+					ynh_die --message="Invalid argument: -${OPTARG:-}"
 				elif [ "$parameter" = ":" ]
 				then
-					ynh_die "-$OPTARG parameter requires an argument."
+					ynh_die --message="-$OPTARG parameter requires an argument."
 				else
 					local shift_value=1
 					# Use the long option, corresponding to the short option read by getopts, as a variable
@@ -132,10 +132,11 @@ ynh_handle_getopts_args () {
 						# Declare the content of option_var as a variable.
 						eval ${option_var}=""
 						# Then read the array value per value
+						local i
 						for i in `seq 0 $(( ${#all_args[@]} - 1 ))`
 						do
 							# If this argument is an option, end here.
-							if [ "${all_args[$i]:0:1}" == "-" ] || [ -z "${all_args[$i]}" ]
+							if [ "${all_args[$i]:0:1}" == "-" ]
 							then
 								# Ignore the first value of the array, which is the option itself
 								if [ "$i" -ne 0 ]; then
@@ -165,25 +166,33 @@ ynh_handle_getopts_args () {
 		# Check if there's getopts arguments
 		if [ "${arguments[0]:0:1}" != "-" ]
 		then
-			# If not, enter in legacy mode and manage the arguments as positionnal ones.
-			echo "! Helper used in legacy mode !"
+			# If not, enter in legacy mode and manage the arguments as positionnal ones..
+			# Dot not echo, to prevent to go through a helper output. But print only in the log.
+			set -x; echo "! Helper used in legacy mode !" > /dev/null; set +x
+			local i
 			for i in `seq 0 $(( ${#arguments[@]} -1 ))`
 			do
-				# Use getopts_parameters as a list of key of the array args_array
+				# Try to use legacy_args as a list of option_flag of the array args_array
+				# Otherwise, fallback to getopts_parameters to get the option_flag. But an associative arrays isn't always sorted in the correct order...
 				# Remove all ':' in getopts_parameters
-				getopts_parameters=${getopts_parameters//:}
-				# Get the key from getopts_parameters, by using the key according to the position of the argument.
-				key=${getopts_parameters:$i:1}
-				# Use the long option, corresponding to the key, as a variable
+				getopts_parameters=${legacy_args:-${getopts_parameters//:}}
+				# Get the option_flag from getopts_parameters, by using the option_flag according to the position of the argument.
+				option_flag=${getopts_parameters:$i:1}
+				if [ -z "$option_flag" ]; then
+						ynh_print_warn --message="Too many arguments ! \"${arguments[$i]}\" will be ignored."
+						continue
+				fi
+				# Use the long option, corresponding to the option_flag, as a variable
 				# (e.g. for [u]=user, 'user' will be used as a variable)
 				# Also, remove '=' at the end of the long option
 				# The variable name will be stored in 'option_var'
-				local option_var="${args_array[$key]%=}"
+				local option_var="${args_array[$option_flag]%=}"
 
 				# Store each value given as argument in the corresponding variable
 				# The values will be stored in the same order than $args_array
 				eval ${option_var}+=\"${arguments[$i]}\"
 			done
+			unset legacy_args
 		else
 			# END LEGACY MODE
 			# Call parse_arg and pass the modified list of args as an array of arguments.