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-rw-r--r--src/stdio/ungetc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stdio/ungetc.c b/src/stdio/ungetc.c
index 180673a4..bc629d4c 100644
--- a/src/stdio/ungetc.c
+++ b/src/stdio/ungetc.c
@@ -16,5 +16,5 @@ int ungetc(int c, FILE *f)
f->flags &= ~F_EOF;
FUNLOCK(f);
- return c;
+ return (unsigned char)c;
}