diff --git a/arch/arm64/include/irq.h b/arch/arm64/include/irq.h
index 42a00c2066..8db6e860ca 100644
--- a/arch/arm64/include/irq.h
+++ b/arch/arm64/include/irq.h
@@ -149,7 +149,7 @@
 
 /* In Armv8-A Architecture, the stack must align with 16 byte */
 
-#define ARM64_CONTEXT_REGS  (38)
+#define ARM64_CONTEXT_REGS  (36)
 #define ARM64_CONTEXT_SIZE  (8 * ARM64_CONTEXT_REGS)
 
 #ifdef CONFIG_ARCH_FPU