diff --git a/src/compiler/SymbolTable.cpp b/src/compiler/SymbolTable.cpp
index fa54a9a..f1752dd 100644
--- a/src/compiler/SymbolTable.cpp
+++ b/src/compiler/SymbolTable.cpp
@@ -47,7 +47,7 @@
 
 	mangledName += static_cast<char>('0' + getNominalSize());
 	if (isArray()) {
-		char buf[10];
+		char buf[20];
 		sprintf(buf, "%d", arraySize);
 		mangledName += '[';
 		mangledName += buf;