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-rw-r--r--src/core/ao_stdio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/ao_stdio.c b/src/core/ao_stdio.c
index 8cf66a23..4a832487 100644
--- a/src/core/ao_stdio.c
+++ b/src/core/ao_stdio.c
@@ -123,7 +123,7 @@ ao_echo(void)
}
int8_t
-ao_add_stdio(char (*pollchar)(void),
+ao_add_stdio(int (*pollchar)(void),
void (*putchar)(char),
void (*flush)(void)) __reentrant
{