diff --git a/dbgutil/oro_debug_suite/cmd/tt.py b/dbgutil/oro_debug_suite/cmd/tt.py
index 6b12d66..7b67209 100644
--- a/dbgutil/oro_debug_suite/cmd/tt.py
+++ b/dbgutil/oro_debug_suite/cmd/tt.py
@@ -82,8 +82,9 @@ def invoke(self, arg, from_tty=False):
             return
 
         try:
-            virt = int(args[0], 0)
-        except ValueError:
+            virt = int(gdb.parse_and_eval(args[0])) & 0xFFFF_FFFF_FFFF_FFFF
+        except ValueError as e:
+            error(f"tt: failed to parse expression: {str(e)}")
             gdb.execute("help oro tt virt")
             return
 
@@ -608,8 +609,9 @@ def invoke(self, arg, from_tty=False):
             return
 
         try:
-            virt = int(args[0], 0)
-        except ValueError:
+            virt = int(gdb.parse_and_eval(args[0])) & 0xFFFF_FFFF_FFFF_FFFF
+        except ValueError as e:
+            error(f"tt: failed to parse expression: {str(e)}")
             gdb.execute("help oro tt at")
             return