diff --git a/src/plugins/clangcodemodel/clangoverviewmodel.cpp b/src/plugins/clangcodemodel/clangoverviewmodel.cpp
index d952f207d73..fc6dce919a8 100644
--- a/src/plugins/clangcodemodel/clangoverviewmodel.cpp
+++ b/src/plugins/clangcodemodel/clangoverviewmodel.cpp
@@ -81,6 +81,7 @@ void buildTree(const TokenContainers &containers,
         if (parentType == ClangBackEnd::HighlightingType::VirtualFunction
                 || parentType == ClangBackEnd::HighlightingType::Function) {
             // Treat everything inside a function scope as local variables.
+            treeItemCache.erase(index);
             continue;
         }