diff --git a/libcpu/rx/context_iar.S b/libcpu/rx/context_iar.S
index 143ae003156146d343714ea617aa03cebccf24f0..db02ce4d1fcd973c923831ecea238bf9f5717359 100644
--- a/libcpu/rx/context_iar.S
+++ b/libcpu/rx/context_iar.S
@@ -73,12 +73,12 @@ ___interrupt_27:
     MOV.L    #_rt_interrupt_from_thread, R15
     MOV.L    [ R15 ], R15
     MOV.L    R0, [ R15 ]
-    BRA      swtich_to_thread
+    BRA      switch_to_thread
 need_modify_isp:
     MVFC     ISP, R15                
     ADD      #12, R15
     MVTC     R15, ISP
-swtich_to_thread:
+switch_to_thread:
     SETPSW   U
     MOV.L    #_rt_interrupt_to_thread, R15
     MOV.L    [ R15 ], R15