diff --git a/libmaxsi/decl/errno_values.h b/libmaxsi/decl/errno_values.h
index adec9dd4..93f42be6 100644
--- a/libmaxsi/decl/errno_values.h
+++ b/libmaxsi/decl/errno_values.h
@@ -37,6 +37,7 @@
 #define EBOUND 45
 #define EINIT 46
 #define ENODRV 47
+#define E2BIG 48
 
 #define EOPNOTSUPP ENOTSUP
 
diff --git a/libmaxsi/error.cpp b/libmaxsi/error.cpp
index 307ff24e..aee70cf7 100644
--- a/libmaxsi/error.cpp
+++ b/libmaxsi/error.cpp
@@ -93,7 +93,8 @@ extern "C" const char* sortix_strerror(int errnum)
 	case EEOF: return "End of file";
 	case EBOUND: return "Out of bounds";
 	case EINIT: return "Not initialized";
-	case ENODRV: return (char*) "No such driver";
+	case ENODRV: return "No such driver";
+	case E2BIG: return "Argument list too long";
 	default: return "Unknown error condition";
 	}
 }