diff --git a/components/nvs_flash/src/nvs_partition_lookup.cpp b/components/nvs_flash/src/nvs_partition_lookup.cpp
index 579d8948bb..e9d27256fa 100644
--- a/components/nvs_flash/src/nvs_partition_lookup.cpp
+++ b/components/nvs_flash/src/nvs_partition_lookup.cpp
@@ -7,6 +7,8 @@
 
 namespace nvs {
 
+namespace partition_lookup {
+
 esp_err_t lookup_nvs_partition(const char* label, NVSPartition **p)
 {
     const esp_partition_t* esp_partition = esp_partition_find_first(
@@ -62,4 +64,6 @@ esp_err_t lookup_nvs_encrypted_partition(const char* label, nvs_sec_cfg_t* cfg,
 
 #endif // CONFIG_NVS_ENCRYPTION
 
+} // partition_lookup
+
 } // nvs
diff --git a/components/nvs_flash/src/nvs_partition_lookup.hpp b/components/nvs_flash/src/nvs_partition_lookup.hpp
index 3d9c1249a3..62a8e8b6fe 100644
--- a/components/nvs_flash/src/nvs_partition_lookup.hpp
+++ b/components/nvs_flash/src/nvs_partition_lookup.hpp
@@ -7,12 +7,16 @@
 
 namespace nvs {
 
+namespace partition_lookup {
+
 esp_err_t lookup_nvs_partition(const char* label, NVSPartition **p);
 
 #ifdef CONFIG_NVS_ENCRYPTION
 esp_err_t lookup_nvs_encrypted_partition(const char* label, nvs_sec_cfg_t* cfg, NVSPartition **p);
 #endif // CONFIG_NVS_ENCRYPTION
 
+} // partition_lookup
+
 } // nvs
 
 #endif // NVS_PARTITION_LOOKUP_HPP_
diff --git a/components/nvs_flash/src/nvs_partition_manager.cpp b/components/nvs_flash/src/nvs_partition_manager.cpp
index 3bf14ea33f..87283767c0 100644
--- a/components/nvs_flash/src/nvs_partition_manager.cpp
+++ b/components/nvs_flash/src/nvs_partition_manager.cpp
@@ -50,7 +50,7 @@ esp_err_t NVSPartitionManager::init_partition(const char *partition_label)
     assert(SPI_FLASH_SEC_SIZE != 0);
 
     NVSPartition *p = nullptr;
-    esp_err_t result = lookup_nvs_partition(partition_label, &p);
+    esp_err_t result = partition_lookup::lookup_nvs_partition(partition_label, &p);
 
     if (result != ESP_OK) {
         goto error;
@@ -125,9 +125,9 @@ esp_err_t NVSPartitionManager::secure_init_partition(const char *part_name, nvs_
     NVSPartition *p;
     esp_err_t result;
     if (cfg != nullptr) {
-        result = lookup_nvs_encrypted_partition(part_name, cfg, &p);
+        result = partition_lookup::lookup_nvs_encrypted_partition(part_name, cfg, &p);
     } else {
-        result = lookup_nvs_partition(part_name, &p);
+        result = partition_lookup::lookup_nvs_partition(part_name, &p);
     }
 
     if (result != ESP_OK) {