diff --git a/lldb/include/lldb/lldb-defines.h b/lldb/include/lldb/lldb-defines.h
index ae6d8cf77ec6..ef15b0f360e6 100644
--- a/lldb/include/lldb/lldb-defines.h
+++ b/lldb/include/lldb/lldb-defines.h
@@ -124,7 +124,7 @@
 #define LLDB_OPT_SET_10                 (1U << 9)
 #define LLDB_OPT_SET_FROM_TO(A, B)      (((1U << (B)) - 1) ^ (((1U << (A))-1) >> 1))
 
-#ifdef _WIN32
+#if defined (_WIN32) && !defined (MAX_PATH)
 #define MAX_PATH 260
 #endif