diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 60d2fe37925c..338c54182551 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -840,6 +840,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
         }
       }
     }
+
+    // Also ignore explicit -force_cpusubtype_ALL option.
+    (void) Args.hasArg(options::OPT_force__cpusubtype__ALL);
   } else if (isa<PrecompileJobAction>(JA)) {
     // Use PCH if the user requested it.
     bool UsePCH = D.CCCUsePCH;