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Diffstat (limited to 'src/emu/driver.c')
-rw-r--r-- | src/emu/driver.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/driver.c b/src/emu/driver.c index bcd2e7610dd..522c270fef3 100644 --- a/src/emu/driver.c +++ b/src/emu/driver.c @@ -205,7 +205,7 @@ static int penalty_compare(const char *source, const char *target) for ( ; *source && *target; target++) { /* do a case insensitive match */ - int match = (tolower(*source) == tolower(*target)); + int match = (tolower((UINT8)*source) == tolower((UINT8)*target)); /* if we matched, advance the source */ if (match) |