diff --git a/src/scripting/vm/vmframe.cpp b/src/scripting/vm/vmframe.cpp
index 08559445eb..09192cbfe1 100644
--- a/src/scripting/vm/vmframe.cpp
+++ b/src/scripting/vm/vmframe.cpp
@@ -272,6 +272,7 @@ VMFrameStack::~VMFrameStack()
 			next = block->NextBlock;
 			delete[] (VM_UBYTE *)block;
 		}
+		Blocks = NULL;
 	}
 	if (UnusedBlocks != NULL)
 	{
@@ -281,9 +282,8 @@ VMFrameStack::~VMFrameStack()
 			next = block->NextBlock;
 			delete[] (VM_UBYTE *)block;
 		}
+		UnusedBlocks = NULL;
 	}
-	Blocks = NULL;
-	UnusedBlocks = NULL;
 }
 
 //===========================================================================
@@ -608,4 +608,4 @@ ADD_STAT(VM)
 	VMCycles[0].Reset();
 	VMCalls[0] = 0;
 	return FStringf("VM time in last 10 tics: %f ms, %d calls", added, addedc);
-}
\ No newline at end of file
+}