Use syntax that works for both gcc 7 and gcc 6.

1 files changed, 1 insertions, 1 deletions

diff --git a/searchsummary/src/vespa/searchsummary/docsummary/attributedfw.cpp b/searchsummary/src/vespa/searchsummary/docsummary/attributedfw.cpp
index fe766bb2889..4bdf91e9434 100644
--- a/searchsummary/src/vespa/searchsummary/docsummary/attributedfw.cpp
+++ b/searchsummary/src/vespa/searchsummary/docsummary/attributedfw.cpp
@@ -49,7 +49,7 @@ ResType inferType(const IAttributeVector & vec) {
                 switch (t) {
                 case BasicType::TENSOR:
                     retval = RES_TENSOR;
-                    [[fallthrough]];
+                    //@fallthrough@
                 default:
                     retval = RES_STRING;
                 }