diff --git a/libcpu/risc-v/rv32m1/interrupt_gcc.S b/libcpu/risc-v/rv32m1/interrupt_gcc.S
index d74cf441bcab36a7c1014e433c11b88a67f6b06e..eacf667c67cfe1f6b3056cd983c9ba413625c987 100644
--- a/libcpu/risc-v/rv32m1/interrupt_gcc.S
+++ b/libcpu/risc-v/rv32m1/interrupt_gcc.S
@@ -69,10 +69,10 @@ IRQ_Handler:
 
     /* need to switch new thread */
     la    s0, rt_thread_switch_interrupt_flag
-    LOAD  s2, 0(s0)
+    lw    s2, 0(s0)
     beqz  s2, spurious_interrupt
     /* clear switch interrupt flag */
-    STORE zero, 0(s0)
+    sw    zero, 0(s0)
 
     csrr  a0, mepc
     STORE a0, 0 * REGBYTES(sp)