diff --git a/arch/arm64/src/common/arm64_mmu.c b/arch/arm64/src/common/arm64_mmu.c
index 294845d8607..d4b949bbf98 100644
--- a/arch/arm64/src/common/arm64_mmu.c
+++ b/arch/arm64/src/common/arm64_mmu.c
@@ -559,7 +559,7 @@ static void enable_mmu_el1(unsigned int flags)
  * Public Functions
  ***************************************************************************/
 
-int arm_mmu_set_memregion(const struct arm_mmu_region *region)
+int arm64_mmu_set_memregion(const struct arm_mmu_region *region)
 {
   uint64_t virt = region->base_va;
   uint64_t size = region->size;
diff --git a/arch/arm64/src/common/arm64_mmu.h b/arch/arm64/src/common/arm64_mmu.h
index e4709d6f876..24e2f2fb06c 100644
--- a/arch/arm64/src/common/arm64_mmu.h
+++ b/arch/arm64/src/common/arm64_mmu.h
@@ -247,6 +247,7 @@ extern const struct arm_mmu_config g_mmu_config;
  ****************************************************************************/
 
 int arm64_mmu_init(bool is_primary_core);
+int arm64_mmu_set_memregion(const struct arm_mmu_region *region);
 
 #endif /* __ASSEMBLY__ */