Index: clang-tidy/boost/UseToStringCheck.cpp
===================================================================
--- clang-tidy/boost/UseToStringCheck.cpp
+++ clang-tidy/boost/UseToStringCheck.cpp
@@ -64,7 +64,7 @@
 
   Diag << FixItHint::CreateReplacement(
       CharSourceRange::getCharRange(Call->getLocStart(),
-                                    Call->getArg(0)->getExprLoc()),
+                                    Call->getArg(0)->getLocStart()),
       (llvm::Twine("std::to_") + StringType + "(").str());
 }
 
Index: test/clang-tidy/boost-use-to-string.cpp
===================================================================
--- test/clang-tidy/boost-use-to-string.cpp
+++ test/clang-tidy/boost-use-to-string.cpp
@@ -147,3 +147,23 @@
   string_as_T<int>();
   string_as_T<std::string>();
 }
+
+struct Fields {
+  int integer;
+  float floating;
+  Fields* wierd;
+  const int &getConstInteger() const {return integer;}
+};
+
+void testFields() {
+  Fields fields;
+  auto s1 = boost::lexical_cast<std::string>(fields.integer);
+  // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: use std::to_string{{..}}
+  // CHECK-FIXES: std::to_string(fields.integer);
+
+  auto s2 = boost::lexical_cast<std::string>(fields.floating);
+  auto s3 = boost::lexical_cast<std::string>(fields.wierd);
+  auto s4 = boost::lexical_cast<std::string>(fields.getConstInteger());
+  // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: use std::to_string{{..}}
+  // CHECK-FIXES: std::to_string(fields.getConstInteger());
+}