diff --git a/clang-tools-extra/clangd/SemanticHighlighting.cpp b/clang-tools-extra/clangd/SemanticHighlighting.cpp
--- a/clang-tools-extra/clangd/SemanticHighlighting.cpp
+++ b/clang-tools-extra/clangd/SemanticHighlighting.cpp
@@ -52,6 +52,11 @@
       // When calling the destructor manually like: AAA::~A(); The ~ is a
       // MemberExpr. Other methods should still be highlighted though.
       return true;
+    if (isa<CXXConversionDecl>(MD))
+      // If the member is a conversion operator the loc will be invalid. This
+      // causes the addToken function to emit a lot of error logs about trying
+      // to add a token with an invalid range.
+      return true;
     addToken(ME->getMemberLoc(), MD);
     return true;
   }