diff --git a/AnvilStats/AnvilStats.vcproj b/AnvilStats/AnvilStats.vcproj
index 64fc47f85..168fba012 100644
--- a/AnvilStats/AnvilStats.vcproj
+++ b/AnvilStats/AnvilStats.vcproj
@@ -356,6 +356,30 @@
 			<File
 				RelativePath="..\source\WorldStorage\FastNBT.cpp"
 				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release profiled|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath="..\source\WorldStorage\FastNBT.h"
diff --git a/source/WorldStorage/FastNBT.cpp b/source/WorldStorage/FastNBT.cpp
index 773aecf62..13a6819e1 100644
--- a/source/WorldStorage/FastNBT.cpp
+++ b/source/WorldStorage/FastNBT.cpp
@@ -10,6 +10,12 @@
 
 
 
+// The number of NBT tags that are reserved when an NBT parsing is started. 
+// You can override this by using a cmdline define
+#ifndef NBT_RESERVE_SIZE
+	#define NBT_RESERVE_SIZE 200
+#endif  // NBT_RESERVE_SIZE
+
 #define RETURN_FALSE_IF_FALSE(X) do { if (!X) return false; } while (0)
 
 
@@ -54,7 +60,7 @@ bool cParsedNBT::Parse(void)
 		return false;
 	}
 	
-	m_Tags.reserve(200);
+	m_Tags.reserve(NBT_RESERVE_SIZE);
 	
 	m_Tags.push_back(cFastNBTTag(TAG_Compound, -1));