diff --git a/hwmonDaemon.py b/hwmonDaemon.py
index f60d0b7..e487e66 100644
--- a/hwmonDaemon.py
+++ b/hwmonDaemon.py
@@ -785,20 +785,19 @@ class SystemHealthMonitor:
 
         size_str = size_str.strip().upper()
 
-        match = re.match(r'^([\d.]+)\s*([KMGT])?B?$', size_str)  # Corrected regex
+        match = re.match(r'^([\d.]+)\s*([KMGT])B?$', size_str)
         if match:
             value = float(match.group(1))
-            unit = match.group(2) if match.group(2) else 'B'
+            unit = match.group(2)
 
             multipliers = {
-                'B': 1,
                 'K': 1024,
                 'M': 1024**2,
                 'G': 1024**3,
                 'T': 1024**4
             }
 
-            return value * multipliers[unit]
+            return value * multipliers.get(unit, 1)  # Default to 1 for bytes
 
         return 0.0