diff --git a/apps/search_indexes/filters.py b/apps/search_indexes/filters.py
index 7a3993c0..4537124d 100644
--- a/apps/search_indexes/filters.py
+++ b/apps/search_indexes/filters.py
@@ -11,7 +11,7 @@ class CustomGeoSpatialFilteringFilterBackend(GeoSpatialFilteringFilterBackend):
 
     @staticmethod
     def calculate_center(first, second):
-        if second[1] < 0 <= first[1]:
+        if second[1] < 0 < first[1]:
             reverse_first, reverse_second = 180 - abs(first[1]), 180 - abs(second[1])
             diff = (reverse_first + reverse_second) / 2
 
@@ -21,6 +21,16 @@ class CustomGeoSpatialFilteringFilterBackend(GeoSpatialFilteringFilterBackend):
             else:
                 result_part = 180 - (180 - first[1] - diff)
 
+        elif second[1] < 0 > first[1]:
+            diff = abs(abs(second[1]) - abs(first[1]))
+
+            if diff > 90:
+                reverse_first, reverse_second = 180 - abs(first[1]), 180 - abs(second[1])
+                result_part = (reverse_first + reverse_second) / 2
+
+            else:
+                result_part = (first[1] + second[1]) / 2
+
         else:
             result_part = (first[1] + second[1]) / 2