diff --git a/libc/kernel/uapi/linux/binfmts.h b/libc/kernel/uapi/linux/binfmts.h
index 729008e..8c4fed0 100644
--- a/libc/kernel/uapi/linux/binfmts.h
+++ b/libc/kernel/uapi/linux/binfmts.h
@@ -22,5 +22,5 @@
 struct pt_regs;
 #define MAX_ARG_STRLEN (PAGE_SIZE * 32)
 #define MAX_ARG_STRINGS 0x7FFFFFFF
-#define BINPRM_BUF_SIZE 128
+#define BINPRM_BUF_SIZE 256
 #endif