diff --git a/lldb/source/Expression/RecordingMemoryManager.cpp b/lldb/source/Expression/RecordingMemoryManager.cpp
index 9ff86f61df16..b7b875f52160 100644
--- a/lldb/source/Expression/RecordingMemoryManager.cpp
+++ b/lldb/source/Expression/RecordingMemoryManager.cpp
@@ -238,10 +238,10 @@ RecordingMemoryManager::CommitAllocations (Process &process)
         
         lldb_private::Error err;
         
-        size_t allocation_size = ai->m_size + ai->m_alignment - 1;
+        size_t allocation_size = (ai->m_size ? ai->m_size : 1) + ai->m_alignment - 1;
         
         if (allocation_size == 0)
-            allocation_size = 1;
+            allocation_size = 1;œ
         
         ai->m_remote_allocation = process.AllocateMemory(
             allocation_size,