diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04fe51d..4354616 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,20 +1,22 @@
 # Changelog
 
-All notable changes to this project will be documented in this file.
+## 0.1.2 - 2025-05-30
 
-## [0.1.1] - 2025-05-14
+### Bug Fixes
 
-### ⚙️ Miscellaneous Tasks
+* fix: capture backtick escaped variable
 
-- Add R logo
-- Swtich to npm ci
-- Update readme
+### Other
 
-## [0.1.0] - 2025-05-13
+* fix: capture backtick escaped variable ([#2](https://github.com/randy3k/radian/issues/2))
 
-### ⚙️ Miscellaneous Tasks
+**Full Changelog**: https://github.com/randy3k/radian/compare/v0.1.1...v0.1.2
 
-- Add github action script
-- Add publish action
+## 0.1.0 - 2025-05-13
+
+### Other
+
+* init
+* Add r and rmarkdown syntaxes
 
 <!-- generated by git-cliff -->
diff --git a/cliff.toml b/cliff.toml
new file mode 100644
index 0000000..135c7a1
--- /dev/null
+++ b/cliff.toml
@@ -0,0 +1,75 @@
+[remote.github]
+owner = "REditorSupport"
+repo = "vscode-R-syntax"
+
+[changelog]
+header = """
+# Changelog
+
+"""
+body = """
+{% if version %}\
+    ## {{ version | trim_start_matches(pat="v") }} - {{ timestamp | date(format="%Y-%m-%d") }}\
+{% else %}\
+    ## Unreleased\
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+
+    ### {{ group | upper_first }}
+    {% for commit in commits %}
+        {% set_global issues = [] %}\
+        {% if commit.remote.pr_number %}\
+            {% set_global issues = issues | concat(with=commit.remote.pr_number) %}\
+        {%- endif %}\
+        {% for link in commit.links %}\
+            {% set_global issues = issues | concat(with=link.text | split(pat="#") | last) %}\
+        {%- endfor -%}\
+        {% if commit.remote.pr_title -%}\
+            {%- set commit_message = commit.remote.pr_title -%}\
+        {%- else -%}\
+            {%- set commit_message = commit.message -%}\
+        {%- endif -%}\
+        * {{ commit_message | split(pat="\n") | first | trim }}\
+            {% set_global issues = issues | unique %}\
+            {% if issues | length > 0 %} (\
+            {% for issue in issues %}\
+                [#{{ issue }}](https://github.com/randy3k/radian/issues/{{ issue }})\
+                {% if not loop.last %}, {% endif %}\
+            {%- endfor -%})\
+            {%- endif %}\
+    {%- endfor -%}\n
+{% endfor %}\
+{% if version %}
+    {% if previous.version %}
+      **Full Changelog**: https://github.com/randy3k/radian/compare/{{ previous.version }}...{{ version }}
+    {% endif %}
+{% else -%}
+  {% raw %}\n{% endraw %}
+{% endif %}\
+"""
+trim = true
+footer = """
+<!-- generated by git-cliff -->
+"""
+postprocessors = []
+
+[git]
+conventional_commits = false
+split_commits = false
+commit_parsers = [
+    { message = "(?i)^feat\\b", group = "Features" },
+    { message = "(?i)^fix\\b", group = "Bug Fixes" },
+    { message = "(?i)^docs\\b", group = "Documentation" },
+    { message = "(?i)^perf\\b", group = "Performance" },
+    { message = "(?i)^refactor\\b", group = "Refactor" },
+    { message = "(?i)^style\\b", group = "Styling" },
+    { message = "(?i)^test\\b", group = "Testing" },
+    { message = "(?i)^(chore|bump to|Merge branch)\\b", skip = true },
+    { body = ".*", group = "Other" },
+]
+link_parsers = [
+    { pattern = "(?i)\\b(?:close|closes|closed|fix|fixes|fixed|resolve|resolves|resolved) #(\\d+)", href = "https://github.com/randy3k/radian/issues/$1" },
+]
+filter_commits = true
+topo_order = false
+sort_commits = "oldest"
diff --git a/package.json b/package.json
index 111f89c..c379ce6 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "r-syntax",
   "displayName": "R Syntax",
   "description": "R Synxtax Highlight for Visual Studio Code",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "author": "REditorSupport",
   "type": "module",
   "license": "SEE LICENSE IN LICENSE",
diff --git a/syntaxes/r.json b/syntaxes/r.json
index 9bb60f2..d18441d 100644
--- a/syntaxes/r.json
+++ b/syntaxes/r.json
@@ -40,6 +40,9 @@
     },
     {
       "include": "#function-calls"
+    },
+    {
+      "match": "(?:[a-zA-Z._][\\w.]*|`[^`]+`)"
     }
   ],
   "repository": {
diff --git a/syntaxes/r.yaml b/syntaxes/r.yaml
index c78da4b..1aff4c2 100644
--- a/syntaxes/r.yaml
+++ b/syntaxes/r.yaml
@@ -25,6 +25,7 @@ patterns:
   - include: "#lambda-functions"
   - include: "#builtin-functions"
   - include: "#function-calls"
+  - match: '{{var}}'
 
 repository:
   accessor:
diff --git a/tests/testdata/basics.R b/tests/testdata/basics.R
index 0dcfc01..dcea8d2 100644
--- a/tests/testdata/basics.R
+++ b/tests/testdata/basics.R
@@ -152,3 +152,7 @@ foo::median
 my_vector |>
 #         ^^ keyword.operator.pipe.r
   foo()
+
+# issue #1
+foo(x = `#afd`)
+#        ^^^^ -comment