diff --git a/otc_doc_convertor/convertor.py b/otc_doc_convertor/convertor.py
index f87f5374..3a94d7ec 100644
--- a/otc_doc_convertor/convertor.py
+++ b/otc_doc_convertor/convertor.py
@@ -346,7 +346,7 @@ class OTCDocConvertor:
         # Another hack: sometimes bold elements ends with space. This is not
         # valid from rst pov and we need to fix that by dropping this space and
         # inject a space after strong block
-        for el in soup.body.find_all("strong"):
+        for el in soup.body.find_all(["strong", "b"]):
             if (
                 el.string
                 and el.string[-1] == " "
@@ -355,8 +355,8 @@ class OTCDocConvertor:
                 el.string.replace_with(curr[:-1])
                 el.insert_after(" ")
             elif (
-                el.string
-                and el.span and el.span.string == " "
+                el.span
+                and el.span.string and el.span.string == " "
             ):
                 el.span.decompose()