diff --git a/arch/mips/ralink/rt288x.c b/arch/mips/ralink/rt288x.c
index 844f5cd55c8f1c1e96e20db2a888c22e1fb12327..3c84166ebcb779b1f50f9711c820977295873377 100644
--- a/arch/mips/ralink/rt288x.c
+++ b/arch/mips/ralink/rt288x.c
@@ -119,5 +119,5 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 	soc_info->mem_size_max = RT2880_MEM_SIZE_MAX;
 
 	rt2880_pinmux_data = rt2880_pinmux_data_act;
-	ralink_soc == RT2880_SOC;
+	ralink_soc = RT2880_SOC;
 }