diff --git a/lexer/lexer.cpp b/lexer/lexer.cpp
index 880527188e5aa9296a1ee95482f6557810e2b1d1..7849aa756e6dd06b7146b00ce672e721c987b855 100644
--- a/lexer/lexer.cpp
+++ b/lexer/lexer.cpp
@@ -1110,6 +1110,11 @@ RegExpFlags Lexer::ScanRegExpFlags()
 
 RegExp Lexer::ScanRegExp()
 {
+    // for proper handling such regexps as /=/
+    if (GetToken().Type() == lexer::TokenType::PUNCTUATOR_DIVIDE_EQUAL) {
+        Iterator().Backward(1);
+    }
+
     GetToken().type_ = TokenType::LITERAL_REGEXP;
 
     const auto patternStart = Iterator().Index();