diff --git a/error.h b/error.h
index 1ef73a6..385738c 100644
--- a/error.h
+++ b/error.h
@@ -52,6 +52,7 @@
 #define Error8(m,a1,a2,a3,a4,a5,a6,a7,a8) msg(E_ERROR,m,a1,a2,a3,a4,a5,a6,a7,a8)
 #define Error9(m,a1,a2,a3,a4,a5,a6,a7,a8,a9) msg(E_ERROR,m,a1,a2,a3,a4,a5,a6,a7,a8,a9)
 #define Error10(m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) msg(E_ERROR,m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10)
+#define Error11(m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11) msg(E_ERROR,m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11)
 #else /* !(WITH_MSGLEVEL >= E_ERROR) */
 #define Error(m)
 #define Error1(m,a1)
@@ -64,6 +65,7 @@
 #define Error8(m,a1,a2,a3,a4,a5,a6,a7,a8)
 #define Error9(m,a1,a2,a3,a4,a5,a6,a7,a8,a9)
 #define Error10(m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10)
+#define Error11(m,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11)
 #endif /* !(WITH_MSGLEVEL <= E_ERROR) */
 
 #if WITH_MSGLEVEL <= E_WARN