diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d3de96f2..31fac046c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac
 - Added simulation function to `hf iclass legrec` (@antiklesys)
 - Added keys from Momentum firmware projects. (@onovy)
 - Added Dutch Statistics Agency default key (@eagle00789)
+- Fixed Wiegand decode with hex input dropping the first bit (@emilyastranova)
 - Changed `hf mf autopwn` - now allows for custom suffix (@zxkmm)
 
 ## [Orca.4.19552][2024-11-22]
diff --git a/client/src/wiegand_formatutils.c b/client/src/wiegand_formatutils.c
index d279744b9..f77ab5bfe 100644
--- a/client/src/wiegand_formatutils.c
+++ b/client/src/wiegand_formatutils.c
@@ -165,7 +165,7 @@ static uint8_t get_length_from_header(wiegand_message_t *data) {
         len = 0;
     }
 
-    while (hfmt > 1) {
+    while (hfmt > 0) {
         hfmt >>= 1;
         len++;
     }