diff --git a/lib/gc/Transforms/Pipeline.cpp b/lib/gc/Transforms/Pipeline.cpp
index 13f73857c..459e77fa8 100644
--- a/lib/gc/Transforms/Pipeline.cpp
+++ b/lib/gc/Transforms/Pipeline.cpp
@@ -111,6 +111,7 @@ void populateCPURuntimePasses(mlir::OpPassManager &pm) {
 }
 
 void populateLoweringToLLVMPasses(mlir::OpPassManager &pm) {
+  pm.addPass(createLowerAffinePass());
   pm.addPass(createFinalizeMemRefToLLVMConversionPass());
   pm.addPass(createConvertSCFToCFPass());
   pm.addPass(cpuruntime::createCPURuntimeToLLVM());