diff --git a/src/compiler_llvm/compilation_unit.cc b/src/compiler_llvm/compilation_unit.cc
index 30c6aa1..9e2c33a 100644
--- a/src/compiler_llvm/compilation_unit.cc
+++ b/src/compiler_llvm/compilation_unit.cc
@@ -430,8 +430,9 @@
   pm_builder.OptLevel = 3;
   pm_builder.DisableSimplifyLibCalls = 1;
   pm_builder.DisableUnitAtATime = 1;
-  pm_builder.populateModulePassManager(pm);
   pm_builder.populateFunctionPassManager(fpm);
+  pm_builder.populateModulePassManager(pm);
+  pm.add(llvm::createStripDeadPrototypesPass());
 
   // Add passes to emit ELF image
   {