core/include/seqan/index/index_qgram_openaddressing.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/core/include/seqan/index/index_qgram_openaddressing.h b/core/include/seqan/index/index_qgram_openaddressing.h
index 4a6c2e6..8cc9a42 100644
--- a/core/include/seqan/index/index_qgram_openaddressing.h
+++ b/core/include/seqan/index/index_qgram_openaddressing.h
@@ -35,6 +35,8 @@
 #ifndef SEQAN_HEADER_INDEX_QGRAM_OPENADRESSING_H
 #define SEQAN_HEADER_INDEX_QGRAM_OPENADRESSING_H
 
+#include <smmintrin.h>
+
 namespace SEQAN_NAMESPACE_MAIN
 {