diff --git a/disk/part_rkparm.c b/disk/part_rkparm.c
index 686fa6ce29..748012131c 100644
--- a/disk/part_rkparm.c
+++ b/disk/part_rkparm.c
@@ -40,6 +40,8 @@ static int rkparm_param_parse(char *param, struct list_head *parts_head,
 	char *pend;
 	int len, offset = 0;
 	unsigned long size, start;
+	char *initrd;
+	const char *str;
 
 	if (!cmdline) {
 		printf("invalid parameter\n");
@@ -47,6 +49,20 @@ static int rkparm_param_parse(char *param, struct list_head *parts_head,
 	}
 
 	*cmdline_end = '\0';
+
+	/*
+	 * Initrd fixup: remove unused "initrd=0x...,0x...", this for
+	 * compatible with legacy parameter.txt
+	 */
+	initrd = strstr(cmdline, "initrd=");
+	if (initrd) {
+		str = strstr(initrd, " ");
+		/* Terminate, so cmdline can be dest for strcat() */
+		*initrd = '\0';
+		/* +1 to skip current white space */
+		strcat((char *)cmdline, (str + 1));
+	}
+
 	/* skip "CMDLINE:" */
 	env_update("bootargs", cmdline + strlen("CMDLINE:"));