diff --git a/src/vs/base/common/filters.ts b/src/vs/base/common/filters.ts
index 53524a781bb52cec2dd34a761a9ade83dd8ab438..e359835d47d2080d3b2bc1aa7b261b3b448a32f8 100644
--- a/src/vs/base/common/filters.ts
+++ b/src/vs/base/common/filters.ts
@@ -440,6 +440,8 @@ _seps['.'] = true;
 _seps[' '] = true;
 _seps['/'] = true;
 _seps['\\'] = true;
+_seps['\''] = true;
+_seps['"'] = true;
 
 const enum Arrow { Top = 0b1, Diag = 0b10, Left = 0b100 }
 
diff --git a/src/vs/base/test/common/filters.test.ts b/src/vs/base/test/common/filters.test.ts
index 76ce3a7b6cc479027e29810dfe705ddf8f7f486e..e1fd42d7d72f542c4ee90b708d7409745c081a2c 100644
--- a/src/vs/base/test/common/filters.test.ts
+++ b/src/vs/base/test/common/filters.test.ts
@@ -214,10 +214,16 @@ suite('Filters', () => {
 		assertMatches('WordCla', 'WordCharacterClassifier', '^W^o^r^d^CharacterC^l^assifier', fuzzyScore);
 		assertMatches('WordCCla', 'WordCharacterClassifier', '^W^o^r^d^Character^C^l^assifier', fuzzyScore);
 	});
+
 	test('fuzzyScore, #23332', function () {
 		assertMatches('dete', '"editor.quickSuggestionsDelay"', undefined, fuzzyScore);
 	});
 
+	test('fuzzyScore, #23190', function () {
+		assertMatches('c:\\do', '& \'C:\\Documents and Settings\'', '& \'^C^:^\\^D^ocuments and Settings\'', fuzzyScore);
+		assertMatches('c:\\do', '& \'c:\\Documents and Settings\'', '& \'^c^:^\\^D^ocuments and Settings\'', fuzzyScore);
+	});
+
 	test('fuzzyScore', function () {
 		assertMatches('ab', 'abA', '^a^bA', fuzzyScore);
 		assertMatches('ccm', 'cacmelCase', '^ca^c^melCase', fuzzyScore);