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-rw-r--r--metrics/src/vespa/metrics/metricset.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/metrics/src/vespa/metrics/metricset.cpp b/metrics/src/vespa/metrics/metricset.cpp
index 9fb731d7583..b4238dc0a7c 100644
--- a/metrics/src/vespa/metrics/metricset.cpp
+++ b/metrics/src/vespa/metrics/metricset.cpp
@@ -8,6 +8,7 @@
#include <list>
#include <cassert>
#include <algorithm>
+#include <ostream>
#include <vespa/log/log.h>
LOG_SETUP(".metrics.metricsset");