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Date: Thu, 30 Apr 2020 12:28:07 +0800
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---
 FreeModbus/modbus/functions/mbfuncdisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FreeModbus/modbus/functions/mbfuncdisc.c b/FreeModbus/modbus/functions/mbfuncdisc.c
index 1dc10e5..d823025 100644
--- a/FreeModbus/modbus/functions/mbfuncdisc.c
+++ b/FreeModbus/modbus/functions/mbfuncdisc.c
@@ -51,7 +51,7 @@ eMBException    prveMBError2Exception( eMBErrorCode eErrorCode );
 
 /* ----------------------- Start implementation -----------------------------*/
 
-#if MB_FUNC_READ_COILS_ENABLED > 0
+#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
 
 eMBException
 eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
-- 
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