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-rw-r--r--src/modules/m_spanningtree/capab.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/modules/m_spanningtree/capab.cpp b/src/modules/m_spanningtree/capab.cpp
index e5d63ab22..7ebee4bda 100644
--- a/src/modules/m_spanningtree/capab.cpp
+++ b/src/modules/m_spanningtree/capab.cpp
@@ -61,6 +61,8 @@ static std::string BuildModeList(ModeType type)
line.push_back(',');
line.append(mh->name);
line.push_back('=');
+ if (mh->GetPrefix())
+ line.push_back(mh->GetPrefix());
line.push_back(c);
}
}