diff --git a/llvm.spec b/llvm.spec
index d546a1a..bac27dc 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -102,6 +102,7 @@ cd _build
 	-DLLVM_LIBDIR_SUFFIX=64 \
 %else
 	-DLLVM_LIBDIR_SUFFIX= \
+	-DLLVM_ENABLE_THREADS:BOOL=OFF \
 %endif
 	\
 	-DLLVM_TARGETS_TO_BUILD="X86;AMDGPU;PowerPC;NVPTX;SystemZ;AArch64;ARM;Mips;BPF" \