diff --git a/llvm-build/build.py b/llvm-build/build.py
index 9df15f4f4921aff5af0968514e50f493ddc4d205..7d641d4574881428c50545f6403435b6d94f1754 100755
--- a/llvm-build/build.py
+++ b/llvm-build/build.py
@@ -435,6 +435,7 @@ class LlvmCore(BuildUtils):
 
     def llvm_compile_darwin_defines(self, llvm_defines):
         if self.host_is_darwin():
+            llvm_defines['LIBUNWIND_ENABLE_SHARED'] = 'OFF'
             llvm_defines['LLDB_ENABLE_LIBEDIT'] = 'OFF'
             llvm_defines['LLDB_NO_DEBUGSERVER'] = 'ON'
             llvm_defines['LLDB_ENABLE_PYTHON'] = 'ON'