diff --git a/lib/libesp32/Berry/default/be_lvgl_ctypes.c b/lib/libesp32/Berry/default/be_lvgl_ctypes.c
index 2b1c58f10..5c42eba67 100644
--- a/lib/libesp32/Berry/default/be_lvgl_ctypes.c
+++ b/lib/libesp32/Berry/default/be_lvgl_ctypes.c
@@ -12,7 +12,7 @@
 // the first 4 bytes are a pointer to a string
 // returns 0..total_elements-1 or -1 if not found
 
-int32_t bin_search(const char * needle, const void * table, size_t elt_size, size_t total_elements) {
+int32_t bin_search_ctypes(const char * needle, const void * table, size_t elt_size, size_t total_elements) {
     int32_t low = 0;
     int32_t high = total_elements - 1;
     int32_t mid = (low + high) / 2;
@@ -109,7 +109,7 @@ int be_ctypes_init(bvm *vm) {
     // berry_log_C("be_ctypes_init> init called");
 
     // look for class definition
-    int32_t class_idx = bin_search(class_name, &be_ctypes_classes->classes[0], sizeof(be_ctypes_class_t), be_ctypes_classes->size);
+    int32_t class_idx = bin_search_ctypes(class_name, &be_ctypes_classes->classes[0], sizeof(be_ctypes_class_t), be_ctypes_classes->size);
     if (class_idx >= 0) {
         // found
         const be_ctypes_structure_t * definitions = be_ctypes_classes->classes[class_idx].definitions;
@@ -139,7 +139,7 @@ int be_ctypes_member(bvm *vm) {
     const char *name = be_tostring(vm, 2);
 
     // look for member
-    int32_t member_idx = bin_search(name, &definitions->items[0], sizeof(be_ctypes_structure_item_t), definitions->size_elt);
+    int32_t member_idx = bin_search_ctypes(name, &definitions->items[0], sizeof(be_ctypes_structure_item_t), definitions->size_elt);
     if (member_idx >= 0) {
         const be_ctypes_structure_item_t *member = &definitions->items[member_idx];
         // berry_log_C("member found bytes=%i, bits=%i, len_bits=%i, type=%i", member->offset_bytes, member->offset_bits, member->len_bits, member->type);
@@ -193,7 +193,7 @@ int be_ctypes_setmember(bvm *vm) {
     const char *name = be_tostring(vm, 2);
 
     // look for member
-    int32_t member_idx = bin_search(name, &definitions->items[0], sizeof(be_ctypes_structure_item_t), definitions->size_elt);
+    int32_t member_idx = bin_search_ctypes(name, &definitions->items[0], sizeof(be_ctypes_structure_item_t), definitions->size_elt);
     if (member_idx >= 0) {
         const be_ctypes_structure_item_t *member = &definitions->items[member_idx];
         // berry_log_C("member found bytes=%i, bits=%i, len_bits=%i, type=%i", member->offset_bytes, member->offset_bits, member->len_bits, member->type);
diff --git a/tasmota/xdrv_52_2_berry_native.ino b/tasmota/xdrv_52_2_berry_native.ino
index d2aa68536..410c9b959 100644
--- a/tasmota/xdrv_52_2_berry_native.ino
+++ b/tasmota/xdrv_52_2_berry_native.ino
@@ -176,30 +176,30 @@ extern "C" {
 // the first 4 bytes are a pointer to a string
 // returns 0..total_elements-1 or -1 if not found
 extern "C" {
-  extern int32_t bin_search(const char * needle, const void * table, size_t elt_size, size_t total_elements);
-  // int32_t bin_search(const char * needle, const void * table, size_t elt_size, size_t total_elements) {
-  //   int32_t low = 0;
-  //   int32_t high = total_elements - 1;
-  //   int32_t mid = (low + high) / 2;
-  //   // start a dissect
-  //   while (low <= high) {
-  //     const char * elt = *(const char **) ( ((uint8_t*)table) + mid * elt_size );
-  //     int32_t comp = strcmp(needle, elt);
-  //     if (comp < 0) {
-  //       high = mid - 1;
-  //     } else if (comp > 0) {
-  //       low = mid + 1;
-  //     } else {
-  //       break;
-  //     }
-  //     mid = (low + high) / 2;
-  //   }
-  //   if (low <= high) {
-  //     return mid;
-  //   } else {
-  //     return -1;
-  //   }
-  // }
+  int32_t bin_search(const char * needle, const void * table, size_t elt_size, size_t total_elements);
+  int32_t bin_search(const char * needle, const void * table, size_t elt_size, size_t total_elements) {
+    int32_t low = 0;
+    int32_t high = total_elements - 1;
+    int32_t mid = (low + high) / 2;
+    // start a dissect
+    while (low <= high) {
+      const char * elt = *(const char **) ( ((uint8_t*)table) + mid * elt_size );
+      int32_t comp = strcmp(needle, elt);
+      if (comp < 0) {
+        high = mid - 1;
+      } else if (comp > 0) {
+        low = mid + 1;
+      } else {
+        break;
+      }
+      mid = (low + high) / 2;
+    }
+    if (low <= high) {
+      return mid;
+    } else {
+      return -1;
+    }
+  }
 }
 
 /*********************************************************************************************\