diff --git a/shell/shell_common.h b/shell/shell_common.h
index 875fd9e..a132302 100644
--- a/shell/shell_common.h
+++ b/shell/shell_common.h
@@ -30,6 +30,17 @@
 
 /* Builtins */
 
+struct builtin_read_params {
+	int        read_flags;
+	void FAST_FUNC (*setvar)(const char *name, const char *val);
+	char       **argv;
+	const char *ifs;
+	const char *opt_n;
+	const char *opt_p;
+	const char *opt_t;
+	const char *opt_u;
+	const char *opt_d;
+};
 enum {
 	BUILTIN_READ_SILENT = 1 << 0,
 	BUILTIN_READ_RAW    = 1 << 1,
@@ -40,16 +51,7 @@
 //	shell_builtin_read(setvar,argv,ifs,read_flags)
 //#endif
 const char* FAST_FUNC
-shell_builtin_read(void FAST_FUNC (*setvar)(const char *name, const char *val),
-	char       **argv,
-	const char *ifs,
-	int        read_flags,
-	const char *opt_n,
-	const char *opt_p,
-	const char *opt_t,
-	const char *opt_u,
-	const char *opt_d
-);
+shell_builtin_read(struct builtin_read_params *params);
 
 int FAST_FUNC
 shell_builtin_ulimit(char **argv);