diff --git a/src/zig_llvm.cpp b/src/zig_llvm.cpp
index 198f8ead154b1d95a12dfc5d1bd02be9d01b5a96..90e462860f666126cec781b7a5cc73b656a604d5 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 = !options->is_debug;
+    pipeline_opts.LoopVectorization = false; // https://github.com/llvm/llvm-project/issues/186922
     pipeline_opts.LoopInterleaving = !options->is_debug;
     pipeline_opts.MergeFunctions = !options->is_debug;