diff --git a/server/src/core/windows/pipesource.c b/server/src/core/windows/pipesource.c
index 1f78aa3..704a66b 100644
--- a/server/src/core/windows/pipesource.c
+++ b/server/src/core/windows/pipesource.c
@@ -187,6 +187,7 @@ static void read_input_pipe(IPC3270_PIPE_SOURCE *source) {
 	switch(GetLastError())
 	{
 	case 0:
+	case WSAEWOULDBLOCK:
 		break;
 
 	case ERROR_IO_PENDING:
--
libgit2 0.21.2