diff --git a/src/zig_llvm.cpp b/src/zig_llvm.cpp
index 44a5fd50eeea8aeee36a942cd85f50c079b8843c..aeb838d10f1040998696fc624b3222685ae6d834 100644
--- a/src/zig_llvm.cpp
+++ b/src/zig_llvm.cpp
@@ -285,7 +285,7 @@ ZIG_EXTERN_C bool ZigLLVMTargetMachineEmitToFile(LLVMTargetMachineRef targ_machi
     PipelineTuningOptions pipeline_opts;
     pipeline_opts.LoopUnrolling = !options->is_debug;
     pipeline_opts.SLPVectorization = !options->is_debug;
-    pipeline_opts.LoopVectorization = false; // https://github.com/llvm/llvm-project/issues/186922
+    pipeline_opts.LoopVectorization = !options->is_debug;
     pipeline_opts.LoopInterleaving = !options->is_debug;
     pipeline_opts.MergeFunctions = !options->is_debug;