diff --git a/src/emitter.c b/src/emitter.c
index 609b28a4..076bcc1a 100644
--- a/src/emitter.c
+++ b/src/emitter.c
@@ -53,7 +53,7 @@
 #define WRITE_BREAK(emitter,string)                                             \
     (FLUSH(emitter)                                                             \
      && (CHECK(string,'\n') ?                                                   \
-         (PUT_BREAK(emitter),                                                   \
+         ((void)PUT_BREAK(emitter),                                             \
           string.pointer ++,                                                    \
           1) :                                                                  \
          (COPY(emitter->buffer,string),                                         \