Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/movtextdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index 825632ca9b..dc30fdc698 100644
--- a/libavcodec/movtextdec.c
+++ b/libavcodec/movtextdec.c
@@ -263,7 +263,7 @@ static int decode_hclr(const uint8_t *tsmb, MovTextContext 
*m, uint64_t size)
 
 static int styles_equivalent(const StyleBox *a, const StyleBox *b)
 {
-#define CMP(field) a->field == b->field
+#define CMP(field) ((a)->field == (b)->field)
     return CMP(bold)  && CMP(italic)   && CMP(underline) && CMP(color) &&
            CMP(alpha) && CMP(fontsize) && CMP(font_id);
 #undef CMP
-- 
2.17.1

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