diff --git a/tests/.env.expand b/tests/.env.expand
index b16fd2e..2ab6a5f 100644
--- a/tests/.env.expand
+++ b/tests/.env.expand
@@ -55,7 +55,8 @@ ONETWO_SIMPLE2=$ONE${TWO}
 ONETWO_SUPER_SIMPLE=$ONE$TWO
 
 TWO_DOLLAR_SIGNS_FOLLOWED_BY_DIGIT="abcd$$1234foo"
-TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER="pa$"
+TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER="pa$$word@"
+TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER_SINGLE_QUOTE='pa$$word@'
 
 # https://github.com/motdotla/dotenv-expand/issues/80
 DONT_CHOKE1='.kZh`>4[,[DDU-*Jt+[;8-,@K=,9%;F9KsoXqOE)gpG^X!{)Q+/9Fc(QF}i[NEi!'
diff --git a/tests/lib/config-expand.test.js b/tests/lib/config-expand.test.js
index ed0462b..3f8663f 100644
--- a/tests/lib/config-expand.test.js
+++ b/tests/lib/config-expand.test.js
@@ -293,7 +293,16 @@ t.test('handles two dollar signs followed by letter', ct => {
   const testPath = 'tests/.env.expand'
   const env = dotenvx.config({ path: testPath })
 
-  ct.equal(env.parsed.TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER, 'pa$')
+  ct.equal(env.parsed.TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER, 'pa$@')
+
+  ct.end()
+})
+
+t.test('handles two dollar signs followed by letter but single quoted', ct => {
+  const testPath = 'tests/.env.expand'
+  const env = dotenvx.config({ path: testPath })
+
+  ct.equal(env.parsed.TWO_DOLLAR_SIGNS_FOLLOWED_BY_LETTER_SINGLE_QUOTE, 'pa$$word@')
 
   ct.end()
 })