diff --git a/pus_tm/system/tcs.py b/pus_tm/system/tcs.py
index 4b552e0..53b3e2e 100644
--- a/pus_tm/system/tcs.py
+++ b/pus_tm/system/tcs.py
@@ -36,7 +36,7 @@ def handle_thermal_controller_hk_data(
         pw = PrintWrapper(printer)
         pw.dlog("Received device temperature data")
 
-        fmt_str = "!fffffiiiiffffhhhhhhhfffffff"
+        fmt_str = "!fffffiiiiffffffffffffffffff"
         tm_data = struct.unpack(fmt_str, hk_data[:90])
         parsed_data = {
             "Q7S_TEMPERATURE": tm_data[0],