diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index 27ae11c6c43..0f22480de84 100644
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -57,9 +57,9 @@ void AddConfiguredTransformationPasses(PassManager &PM) {
   addPass(PM, createTailDuplicationPass());      // Simplify cfg by copying code
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
   addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
+  addPass(PM, createTailCallEliminationPass());  // Eliminate tail calls
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
 
-
   addPass(PM, createReassociatePass());          // Reassociate expressions
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs