diff --git a/shodan_infrastructure/MpactCheriotCPU.cs b/shodan_infrastructure/MpactCheriotCPU.cs
index ba3ca12..b115bad 100644
--- a/shodan_infrastructure/MpactCheriotCPU.cs
+++ b/shodan_infrastructure/MpactCheriotCPU.cs
@@ -328,7 +328,7 @@
             LogAndThrowRE("Failed to read register " + register);
         }
         Int64 value = Marshal.ReadInt64(value_ptr);
-        return (UInt64)value;
+        return (UInt32)value;
     }
 
     private void GetMpactRegisters() {