diff --git a/src/parserindexer/ads_parser.py b/src/parserindexer/ads_parser.py
index d085947..4f4436b 100644
--- a/src/parserindexer/ads_parser.py
+++ b/src/parserindexer/ads_parser.py
@@ -35,11 +35,16 @@ def escape_solr_chars(text):
             '!': r'\!',
             '(': r'\(',
             ')': r'\)',
+            '{': r'\{',
+            '}': r'\}',
+            '[': r'\[',
+            ']': r'\]',
             '"': r'\"',
             '~': r'\~',
             '*': r'\*',
             '?': r'\?',
-            ':': r'\:'
+            ':': r'\:',
+            '/': r'\/'
         }
 
         for c, r in escape_rules.items():