diff --git a/src/index.ts b/src/index.ts
index f1f6a22..5c63959 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -28,7 +28,7 @@ function main() {
         }
       }
       if (event.text.length <= 2) return
-      if (!event.text.match(/^(\$+)([^$]+)\1$/m)) return
+      if (!event.text.match(/^(\$+)([^$]+)\1$/)) return
       const block = await logseq.Editor.getCurrentBlock()
       if (block === null) return
       openPopup(block.uuid, {
diff --git a/src/popup.ts b/src/popup.ts
index faa2d38..c16c072 100644
--- a/src/popup.ts
+++ b/src/popup.ts
@@ -26,7 +26,7 @@ export async function openPopup(
   let delim = logseq.settings?.preferDisplay ? '$$' : '$'
   let newline = logseq.settings?.preferMultiline ? '\n' : ''
   if (originalContent) {
-    const match = originalContent.match(/^(?<delim>\$+)(?<newline>\n*)(?<content>.*)\2\1$/ms)
+    const match = originalContent.match(/^(?<delim>\$+)(?<newline>\n*)(?<content>.*)\2\1$/s)
     if (match !== null && match.groups !== undefined) {
       originalValue = match.groups.content
       delim = match.groups.delim