diff --git a/B5500/b5500_sys.c b/B5500/b5500_sys.c
index 7025a78..0b65161 100644
--- a/B5500/b5500_sys.c
+++ b/B5500/b5500_sys.c
@@ -150,7 +150,7 @@ const char          ascii_to_con[128] = {
    /* P    Q    R    S    T    U    V    W */
     047, 050, 051, 022, 023, 024, 025, 026,
    /* X    Y    Z    [    \    ]    ^    _ */
-    027, 030, 031, 075, 036, 055, 057, 000,
+    027, 030, 031, 074, 036, 036, 057, 000,
    /* `    a    b    c    d    e    f    g */
     035, 061, 062, 063, 064, 065, 066, 067,     /* 140 - 177 */
    /* h    i    j    k    l    m    n    o */