diff --git a/bsps/aarch64/include/bsp/aarch64-mmu.h b/bsps/aarch64/include/bsp/aarch64-mmu.h
index 8c69705230..ce2295bb04 100644
--- a/bsps/aarch64/include/bsp/aarch64-mmu.h
+++ b/bsps/aarch64/include/bsp/aarch64-mmu.h
@@ -371,7 +371,7 @@ aarch64_mmu_set_translation_table_entries(
   );
 
   if ( sc != RTEMS_SUCCESSFUL ) {
-    rtems_fatal_error_occurred( sc );
+    bsp_fatal( AARCH64_FATAL_MMU_CANNOT_MAP_BLOCK );
   }
 }
 
diff --git a/bsps/include/bsp/fatal.h b/bsps/include/bsp/fatal.h
index b41ef2d5c2..98928e4756 100644
--- a/bsps/include/bsp/fatal.h
+++ b/bsps/include/bsp/fatal.h
@@ -220,6 +220,9 @@ typedef enum {
 
   /* TMS570 fatal codes */
   TMS570_FATAL_RTI_IRQ_INSTALL = BSP_FATAL_CODE_BLOCK(18),
+
+  /* AArch64 fatal codes */
+  AARCH64_FATAL_MMU_CANNOT_MAP_BLOCK = BSP_FATAL_CODE_BLOCK(19),
 } bsp_fatal_code;
 
 RTEMS_NO_RETURN static inline void