diff --git a/scripts/dbgbmap.py b/scripts/dbgbmap.py
index 91474f31..933b1e15 100755
--- a/scripts/dbgbmap.py
+++ b/scripts/dbgbmap.py
@@ -715,6 +715,7 @@ class Rbyd:
         if not self:
             return True, 0, -1, 0, 0, 0, b'', []
 
+        tag = max(tag, 0x1)
         lower = 0
         upper = self.weight
         path = []
diff --git a/scripts/dbgbtree.py b/scripts/dbgbtree.py
index 0a901dbb..bcc498a6 100755
--- a/scripts/dbgbtree.py
+++ b/scripts/dbgbtree.py
@@ -375,6 +375,7 @@ class Rbyd:
         if not self:
             return True, 0, -1, 0, 0, 0, b'', []
 
+        tag = max(tag, 0x1)
         lower = 0
         upper = self.weight
         path = []
diff --git a/scripts/dbglfs.py b/scripts/dbglfs.py
index 721eacab..cd4f2cc0 100755
--- a/scripts/dbglfs.py
+++ b/scripts/dbglfs.py
@@ -406,6 +406,7 @@ class Rbyd:
         if not self:
             return True, 0, -1, 0, 0, 0, b'', []
 
+        tag = max(tag, 0x1)
         lower = 0
         upper = self.weight
         path = []
diff --git a/scripts/dbgmtree.py b/scripts/dbgmtree.py
index 807ed6c6..07ab0dd9 100755
--- a/scripts/dbgmtree.py
+++ b/scripts/dbgmtree.py
@@ -390,6 +390,7 @@ class Rbyd:
         if not self:
             return True, 0, -1, 0, 0, 0, b'', []
 
+        tag = max(tag, 0x1)
         lower = 0
         upper = self.weight
         path = []
diff --git a/scripts/dbgrbyd.py b/scripts/dbgrbyd.py
index 50beb0b4..46d03ebb 100755
--- a/scripts/dbgrbyd.py
+++ b/scripts/dbgrbyd.py
@@ -614,6 +614,7 @@ def dbg_tree(data, block_size, rev, trunk, weight, *,
     # lookup a tag, returning also the search path for decoration
     # purposes
     def lookup(rid, tag):
+        tag = max(tag, 0x1)
         lower = 0
         upper = weight
         path = []