diff --git a/cpp/ql/src/semmle/code/cpp/models/implementations/StdString.qll b/cpp/ql/src/semmle/code/cpp/models/implementations/StdString.qll
index 80fe85e9f13..9c6ebd1a877 100644
--- a/cpp/ql/src/semmle/code/cpp/models/implementations/StdString.qll
+++ b/cpp/ql/src/semmle/code/cpp/models/implementations/StdString.qll
@@ -4,6 +4,7 @@ import semmle.code.cpp.models.interfaces.Taint
  * The `std::basic_string` constructor(s).
  */
 class StdStringConstructor extends TaintFunction {
+  pragma[noinline]
   StdStringConstructor() { this.hasQualifiedName("std", "basic_string", "basic_string") }
 
   override predicate hasTaintFlow(FunctionInput input, FunctionOutput output) {