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-rw-r--r--eval/src/tests/ann/nns-l2.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/eval/src/tests/ann/nns-l2.h b/eval/src/tests/ann/nns-l2.h
index dcad5f1bda6..857866ff73b 100644
--- a/eval/src/tests/ann/nns-l2.h
+++ b/eval/src/tests/ann/nns-l2.h
@@ -2,6 +2,7 @@
#pragma once
#include <string.h>
+#include <vespa/vespalib/util/arrayref.h>
#include <vespa/vespalib/hwaccelrated/iaccelrated.h>
template <typename T, size_t VLEN>