diff --git a/scans/bc.s b/scans/bc.s
index 5dfb129..4d1ed6a 100644
--- a/scans/bc.s
+++ b/scans/bc.s
@@ -213,7 +213,7 @@ olddp: 0
 dspbuf: 0
 dspbp: 0
 instr: 0
-obs: 0
+pbs: 0
 inslitr: n 5
 insasg: b 1
 o17: 017
diff --git a/src/cmd/bc.s b/src/cmd/bc.s
index 5dfb129..4d1ed6a 100644
--- a/src/cmd/bc.s
+++ b/src/cmd/bc.s
@@ -213,7 +213,7 @@ olddp: 0
 dspbuf: 0
 dspbp: 0
 instr: 0
-obs: 0
+pbs: 0
 inslitr: n 5
 insasg: b 1
 o17: 017