diff --git a/src/debug/printing/printable.cpp b/src/debug/printing/printable.cpp
index 5498c5b..a3206bb 100644
--- a/src/debug/printing/printable.cpp
+++ b/src/debug/printing/printable.cpp
@@ -20,8 +20,8 @@ namespace sta
 		int n = vsnprintf(temp, 1, fmt, args);
 
 		va_start (args, fmt);
-		char str[n];
-		vsnprintf(str, n, fmt, args);
+		char str[n+1];
+		vsnprintf(str, n+1, fmt, args);
 		STA_ASSERT(n > 0);
 
 		println(str);