diff --git a/multipy/runtime/environment.h b/multipy/runtime/environment.h
index c082e4f3..3320616b 100644
--- a/multipy/runtime/environment.h
+++ b/multipy/runtime/environment.h
@@ -66,7 +66,7 @@ class Environment {
   }
   virtual ~Environment() {
     auto rmCmd = "rm -rf " + extraPythonLibrariesDir_;
-    system(rmCmd.c_str());
+    (void)system(rmCmd.c_str());
   }
   virtual void configureInterpreter(Interpreter* interp) = 0;
   virtual const std::vector<std::string>& getExtraPythonPaths() {