diff --git a/os/common/ports/ARMv6-M-RP2/chcore.h b/os/common/ports/ARMv6-M-RP2/chcore.h
index 91066c507..6427e51e3 100644
--- a/os/common/ports/ARMv6-M-RP2/chcore.h
+++ b/os/common/ports/ARMv6-M-RP2/chcore.h
@@ -267,11 +267,11 @@
     #define PORT_INFO                   "Preemption through PendSV (SMP)"
   #endif
 #else
-#if (CORTEX_ALTERNATE_SWITCH == FALSE) || defined(__DOXYGEN__)
-  #define PORT_INFO                     "Preemption through NMI"
-#else
-  #define PORT_INFO                     "Preemption through PendSV"
-#endif
+  #if (CORTEX_ALTERNATE_SWITCH == FALSE) || defined(__DOXYGEN__)
+    #define PORT_INFO                     "Preemption through NMI"
+  #else
+    #define PORT_INFO                     "Preemption through PendSV"
+  #endif
 #endif
 /** @} */