diff --git a/firmware/src/parsing.c b/firmware/src/parsing.c
index 96b14a5..c2d1d1d 100644
--- a/firmware/src/parsing.c
+++ b/firmware/src/parsing.c
@@ -113,7 +113,7 @@ AddressRange parseAddressRange(char* addressStr) {
     AddressRange range = parseSingleAddress(addressStr);
 
     if (range.isValid && len == 9) {
-        if (!parseSingleAddressTo(addressStr + 4, &range.to)) {
+        if (!parseSingleAddressTo(addressStr + 5, &range.to)) {
             return (AddressRange) {false, 0, 0};
         }
     }