diff --git a/bolt/lib/Rewrite/RewriteInstance.cpp b/bolt/lib/Rewrite/RewriteInstance.cpp
--- a/bolt/lib/Rewrite/RewriteInstance.cpp
+++ b/bolt/lib/Rewrite/RewriteInstance.cpp
@@ -1152,7 +1152,6 @@
                << Twine::utohexstr(Address) << ") does not have any section\n";
         continue;
       }
-      assert(Section && "section for functions must be registered");
 
       // Skip symbols from zero-sized sections.
       if (!Section->getSize())