diff --git a/targets/corstone-300/target.cpp b/targets/corstone-300/target.cpp
index f186ddf..f52a5db 100644
--- a/targets/corstone-300/target.cpp
+++ b/targets/corstone-300/target.cpp
@@ -252,7 +252,7 @@
     struct ExcContext *e;
     uint32_t sp;
 
-    asm volatile("mrs %0, ipsr            \n" // Read IPSR (Exceptio number)
+    asm volatile("mrs %0, ipsr            \n" // Read IPSR (Exception number)
                  "sub %0, #16             \n" // Get it into IRQn_Type range
                  "tst lr, #4              \n" // Select the stack which was in use
                  "ite eq                  \n"