diff --git a/manifest-beta.json b/manifest-beta.json
index e4dcfb4..ef569ca 100644
--- a/manifest-beta.json
+++ b/manifest-beta.json
@@ -1,7 +1,7 @@
 {
 	"id": "omnisearch",
 	"name": "Omnisearch",
-	"version": "1.11.1",
+	"version": "1.12.2",
 	"minAppVersion": "1.0.0",
 	"description": "A search engine that just works",
 	"author": "Simon Cambier",
diff --git a/manifest.json b/manifest.json
index 96adfa2..290aefc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
 	"id": "omnisearch",
 	"name": "Omnisearch",
-	"version": "1.11.1",
+	"version": "1.12.2",
 	"minAppVersion": "1.0.0",
 	"description": "A search engine that just works",
 	"author": "Simon Cambier",
diff --git a/package.json b/package.json
index 4d604b3..07d033e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "scambier.obsidian-search",
-  "version": "1.12.1-beta.1",
+  "version": "1.12.2",
   "description": "A search engine for Obsidian",
   "main": "dist/main.js",
   "scripts": {
diff --git a/src/search/omnisearch.ts b/src/search/omnisearch.ts
index a057604..902607d 100644
--- a/src/search/omnisearch.ts
+++ b/src/search/omnisearch.ts
@@ -190,9 +190,11 @@ export class Omnisearch {
 
     // Filter query results to only keep files that match query.extensions (if any)
     if (query.extensions.length) {
-      results = results.filter(r =>
-        query.extensions.some(e => r.id.endsWith(e))
-      )
+      results = results.filter(r => {
+        // ".can" should match ".canvas"
+        const ext = '.' + r.id.split('.').pop()
+        return query.extensions.some(e => ext.startsWith(e))
+      })
     }
 
     // If the query does not return any result,
diff --git a/src/tools/utils.ts b/src/tools/utils.ts
index 66ee8d2..73eed56 100644
--- a/src/tools/utils.ts
+++ b/src/tools/utils.ts
@@ -27,7 +27,12 @@ export function highlighter(str: string): string {
 }
 
 export function highlighterGroups(...args: any[]) {
-  if (args[1] && args[2])
+  if (
+    args[1] !== null &&
+    args[1] !== undefined &&
+    args[2] !== null &&
+    args[2] !== undefined
+  )
     return `${args[1]}<span class="${highlightClass}">${args[2]}</span>`
   return '&lt;no content&gt;'
 }
@@ -63,8 +68,9 @@ export function wait(ms: number): Promise<void> {
 }
 
 // https://stackoverflow.com/a/3561711
+// but we enclose special chars in brackets to avoid them being interpreted as regex
 export function escapeRegex(str: string): string {
-  return str.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&')
+  return str.replace(/[-/\\^$*+?.()|[\]{}]/g, '[$&]')
 }
 
 /**
@@ -88,7 +94,7 @@ export function stringsToRegex(strings: string[]): RegExp {
   // Default word split is not applied if the user uses the cm-chs-patch plugin
   const joined =
     '(' +
-    (getChsSegmenter() ? '' : SPACE_OR_PUNCTUATION.source) +
+    (getChsSegmenter() ? '' : `^|${SPACE_OR_PUNCTUATION.source}`) +
     ')' +
     '(' +
     strings.map(s => escapeRegex(s)).join('|') +
diff --git a/versions.json b/versions.json
index 83402db..31daaf8 100644
--- a/versions.json
+++ b/versions.json
@@ -95,5 +95,9 @@
 	"1.10.1": "1.0.0",
 	"1.11.0-beta.1": "1.0.0",
 	"1.11.0": "1.0.0",
-	"1.11.1": "1.0.0"
+	"1.11.1": "1.0.0",
+	"1.12.0": "1.0.0",
+	"1.12.1-beta.1": "1.0.0",
+	"1.12.1": "1.0.0",
+	"1.12.2": "1.0.0"
 }
\ No newline at end of file