diff --git a/grammar.js b/grammar.js
index a00cf91..3445f28 100644
--- a/grammar.js
+++ b/grammar.js
@@ -36,7 +36,7 @@ module.exports = grammar({
 
 		large: $ => /[A-Z_\d]+/,
 
-		string: $ => /[A-Za-z \-,.'/\\]+/,
+		string: $ => /[A-Za-z \-,.'/\\=]+/,
 
 		separator: $ => /:/,
 
diff --git a/src/grammar.json b/src/grammar.json
index 858a2f5..d82124b 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -121,7 +121,7 @@
     },
     "string": {
       "type": "PATTERN",
-      "value": "[A-Za-z \\-,.'/\\\\]+"
+      "value": "[A-Za-z \\-,.'/\\\\=]+"
     },
     "separator": {
       "type": "PATTERN",
diff --git a/src/parser.c b/src/parser.c
index 637ad08..7b63f2b 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -183,6 +183,7 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       if (('A' <= lookahead && lookahead <= 'Z')) ADVANCE(7);
       if (lookahead == '\'' ||
           (',' <= lookahead && lookahead <= '/') ||
+          lookahead == '=' ||
           lookahead == '\\' ||
           ('a' <= lookahead && lookahead <= 'z')) ADVANCE(11);
       END_STATE();
@@ -222,6 +223,7 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       if (lookahead == ' ' ||
           lookahead == '\'' ||
           (',' <= lookahead && lookahead <= '/') ||
+          lookahead == '=' ||
           lookahead == '\\' ||
           ('a' <= lookahead && lookahead <= 'z')) ADVANCE(11);
       END_STATE();
@@ -242,6 +244,7 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       if (('A' <= lookahead && lookahead <= 'Z')) ADVANCE(7);
       if (lookahead == '\'' ||
           (',' <= lookahead && lookahead <= '/') ||
+          lookahead == '=' ||
           lookahead == '\\' ||
           ('a' <= lookahead && lookahead <= 'z')) ADVANCE(11);
       END_STATE();
@@ -250,6 +253,7 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       if (lookahead == ' ' ||
           lookahead == '\'' ||
           (',' <= lookahead && lookahead <= '/') ||
+          lookahead == '=' ||
           ('A' <= lookahead && lookahead <= 'Z') ||
           lookahead == '\\' ||
           ('a' <= lookahead && lookahead <= 'z')) ADVANCE(11);
diff --git a/test/corpus/test.txt b/test/corpus/test.txt
index 98bf9d6..5b4fa0f 100644
--- a/test/corpus/test.txt
+++ b/test/corpus/test.txt
@@ -7,7 +7,7 @@ opening_comment
 [TEST:BODY_1PART] comment here
 	[MULTIPLE:string:123:LARGE]
 	[SINGLE_TEST]
-	[HERE:A string, contating lot's of diffent-punctuation.]
+	[HERE:A string, contating=lot's of diffent-punctuation.]
 
 ---