diff --git a/compiler-rt/lib/lsan/lsan_allocator.h b/compiler-rt/lib/lsan/lsan_allocator.h
--- a/compiler-rt/lib/lsan/lsan_allocator.h
+++ b/compiler-rt/lib/lsan/lsan_allocator.h
@@ -72,7 +72,7 @@
 const uptr kAllocatorSpace = 0x40000000000ULL;
 const uptr kAllocatorSize = 0x40000000000ULL;  // 4T.
 # else
-const uptr kAllocatorSpace = 0x600000000000ULL;
+const uptr kAllocatorSpace = 0x500000000000ULL;
 const uptr kAllocatorSize  = 0x40000000000ULL;  // 4T.
 # endif
 template <typename AddressSpaceViewTy>