diff --git a/clang-tools-extra/clangd/Diagnostics.cpp b/clang-tools-extra/clangd/Diagnostics.cpp
--- a/clang-tools-extra/clangd/Diagnostics.cpp
+++ b/clang-tools-extra/clangd/Diagnostics.cpp
@@ -691,6 +691,13 @@
       llvm::StringRef Remove =
           Lexer::getSourceText(FixIt.RemoveRange, SM, *LangOpts, &Invalid);
       llvm::StringRef Insert = FixIt.CodeToInsert;
+      if (FixIt.InsertFromRange.isValid()) {
+        assert(FixIt.CodeToInsert.empty() &&
+               "Cannot insert text when range is specified");
+        if (!Invalid)
+          Insert = Lexer::getSourceText(FixIt.InsertFromRange, SM, *LangOpts,
+                                        &Invalid);
+      }
       if (!Invalid) {
         llvm::raw_svector_ostream M(Message);
         if (!Remove.empty() && !Insert.empty()) {
diff --git a/clang-tools-extra/clangd/SourceCode.cpp b/clang-tools-extra/clangd/SourceCode.cpp
--- a/clang-tools-extra/clangd/SourceCode.cpp
+++ b/clang-tools-extra/clangd/SourceCode.cpp
@@ -548,7 +548,15 @@
   TextEdit Result;
   Result.range =
       halfOpenToRange(M, Lexer::makeFileCharRange(FixIt.RemoveRange, M, L));
-  Result.newText = FixIt.CodeToInsert;
+
+  if (FixIt.InsertFromRange.isValid()) {
+    assert(FixIt.CodeToInsert.empty() &&
+           "Cannot insert text when range is specified");
+    // FIXME: Propagate errors from getSourceText
+    Result.newText = Lexer::getSourceText(FixIt.InsertFromRange, M, L).str();
+  } else {
+    Result.newText = FixIt.CodeToInsert;
+  }
   return Result;
 }
 
diff --git a/clang-tools-extra/clangd/unittests/SourceCodeTests.cpp b/clang-tools-extra/clangd/unittests/SourceCodeTests.cpp
--- a/clang-tools-extra/clangd/unittests/SourceCodeTests.cpp
+++ b/clang-tools-extra/clangd/unittests/SourceCodeTests.cpp
@@ -802,6 +802,49 @@
   EXPECT_FALSE(isKeyword("override", LangOpts));
 }
 
+Expected<SourceRange> sourceRangeInMainFile(SourceManager &SM, Range R) {
+  if (auto Beg = sourceLocationInMainFile(SM, R.start)) {
+    if (auto End = sourceLocationInMainFile(SM, R.end)) {
+      return SourceRange(*Beg, *End);
+    } else {
+      return End.takeError();
+    }
+  } else {
+    return Beg.takeError();
+  }
+}
+
+TEST(SourceCodeTests, FixItToTextEdit) {
+  Annotations Code(R"(
+    int Var = $V1[[$V1^Value1]] + $V2[[$V2^Value2]];
+  )");
+  SourceManagerForFile SMFF("File", Code.code());
+  SourceManager &SM = SMFF.get();
+  LangOptions LangOpts;
+  SourceRange V1Char = cantFail(sourceRangeInMainFile(SM, Code.range("V1")));
+  SourceRange V2Char = cantFail(sourceRangeInMainFile(SM, Code.range("V2")));
+  SourceLocation V1Tok =
+      cantFail(sourceLocationInMainFile(SM, Code.point("V1")));
+  SourceLocation V2Tok =
+      cantFail(sourceLocationInMainFile(SM, Code.point("V2")));
+  {
+    FixItHint Hint;
+    Hint.RemoveRange = CharSourceRange::getCharRange(V1Char);
+    Hint.InsertFromRange = CharSourceRange::getCharRange(V2Char);
+    TextEdit E = toTextEdit(Hint, SM, LangOpts);
+    EXPECT_EQ(E.range, Code.range("V1"));
+    EXPECT_EQ(E.newText, "Value2");
+  }
+  {
+    FixItHint Hint;
+    Hint.RemoveRange = CharSourceRange::getTokenRange(V1Tok, V1Tok);
+    Hint.InsertFromRange = CharSourceRange::getTokenRange(V2Tok);
+    TextEdit E = toTextEdit(Hint, SM, LangOpts);
+    EXPECT_EQ(E.range, Code.range("V1"));
+    EXPECT_EQ(E.newText, "Value2");
+  }
+}
+
 } // namespace
 } // namespace clangd
 } // namespace clang