diff --git a/extra/io/serial/unix/linux/linux.factor b/extra/io/serial/unix/linux/linux.factor
index 4d1878d2a9..b0cac09b5f 100644
--- a/extra/io/serial/unix/linux/linux.factor
+++ b/extra/io/serial/unix/linux/linux.factor
@@ -95,23 +95,23 @@ CONSTANT: PENDIN  OCT: 0040000
 CONSTANT: IEXTEN  OCT: 0100000
 
 M: linux lookup-baud ( n -- n )
-    dup H{
-        { 0 OCT: 0000000 }
-        { 50    OCT: 0000001 }
-        { 75    OCT: 0000002 }
-        { 110   OCT: 0000003 }
-        { 134   OCT: 0000004 }
-        { 150   OCT: 0000005 }
-        { 200   OCT: 0000006 }
-        { 300   OCT: 0000007 }
-        { 600   OCT: 0000010 }
-        { 1200  OCT: 0000011 }
-        { 1800  OCT: 0000012 }
-        { 2400  OCT: 0000013 }
-        { 4800  OCT: 0000014 }
-        { 9600  OCT: 0000015 }
-        { 19200 OCT: 0000016 }
-        { 38400 OCT: 0000017 }
+    H{
+        { 0       OCT: 0000000 }
+        { 50      OCT: 0000001 }
+        { 75      OCT: 0000002 }
+        { 110     OCT: 0000003 }
+        { 134     OCT: 0000004 }
+        { 150     OCT: 0000005 }
+        { 200     OCT: 0000006 }
+        { 300     OCT: 0000007 }
+        { 600     OCT: 0000010 }
+        { 1200    OCT: 0000011 }
+        { 1800    OCT: 0000012 }
+        { 2400    OCT: 0000013 }
+        { 4800    OCT: 0000014 }
+        { 9600    OCT: 0000015 }
+        { 19200   OCT: 0000016 }
+        { 38400   OCT: 0000017 }
         { 57600   OCT: 0010001 }
         { 115200  OCT: 0010002 }
         { 230400  OCT: 0010003 }