diff --git a/libavcodec/x86/bswapdsp.asm b/libavcodec/x86/bswapdsp.asm
index 219d172481..213ffbde07 100644
--- a/libavcodec/x86/bswapdsp.asm
+++ b/libavcodec/x86/bswapdsp.asm
@@ -157,5 +157,7 @@ BSWAP32_BUF
 INIT_XMM ssse3
 BSWAP32_BUF
 
+%if HAVE_AVX2_EXTERNAL
 INIT_YMM avx2
 BSWAP32_BUF
+%endif