diff --git a/cmdcomp/v2/completion.py b/cmdcomp/v2/completion.py
index 6c34445..c68fd35 100644
--- a/cmdcomp/v2/completion.py
+++ b/cmdcomp/v2/completion.py
@@ -14,6 +14,7 @@ def generate_v2(shell: ShellType, config: V2Config) -> str:
         loader=FileSystemLoader(Path(__file__).parent / "templates"),
     )
     env.filters["ident"] = lambda x: re.sub(r"[\*\.,-]", "_", str(x))
+    env.filters["escape"] = lambda x: x.replace("'", "''")
     template = env.get_template(f"{shell.value}.sh.jinja")
 
     return template.render(
diff --git a/cmdcomp/v2/templates/zsh.sh.jinja b/cmdcomp/v2/templates/zsh.sh.jinja
index e762922..a4f891d 100644
--- a/cmdcomp/v2/templates/zsh.sh.jinja
+++ b/cmdcomp/v2/templates/zsh.sh.jinja
@@ -27,7 +27,7 @@
   {%- endif -%}
 {%- endmacro -%}
 
-#!/bin/zsh
+#compdef {{ app_name }}
 #
 # Code generated by cmdcomp "{{ version }}". DO NOT EDIT.
 # For more information about cmdcomp, please refer to https://github.com/yassun7010/cmdcomp .
@@ -54,7 +54,7 @@
       local -a _{{ scope|ident }}_subcmds
       _{{ scope|ident }}_subcmds=(
 {%- for subcmd_name, subcommand in command.subcommands.items() %}
-        {{ candidate(subcmd_name, subcommand) }}'{{ description(subcommand) }}'
+        {{ candidate(subcmd_name, subcommand) }}'{{ description(subcommand)|escape }}'
 {%- endfor %}
       )
 {% endif %}
@@ -65,7 +65,7 @@
 {%- endfor %}
       _arguments -C \
 {%- for kwd_name, keyword in command.keyword_arguments.items() %}
-        {{ candidate(kwd_name, keyword) }}'{{ description(keyword) }}{{ contents(kwd_name, keyword) }}' \
+        {{ candidate(kwd_name, keyword) }}'{{ description(keyword)|escape }}{{ contents(kwd_name, keyword) }}' \
 {%- endfor %}
 {%- for pos_name, positional in command.positional_arguments.items() %}
         '{{ pos_name }}{{ contents(pos_name, positional) }}' \
diff --git a/examples/demo/output.zsh b/examples/demo/output.zsh
index 3982105..174bdf0 100644
--- a/examples/demo/output.zsh
+++ b/examples/demo/output.zsh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#compdef mycli
 #
 # Code generated by cmdcomp "$CMDCOMP_VERSION". DO NOT EDIT.
 # For more information about cmdcomp, please refer to https://github.com/yassun7010/cmdcomp .
diff --git a/examples/v2/output.zsh b/examples/v2/output.zsh
index 0cdf26e..b6bcb69 100644
--- a/examples/v2/output.zsh
+++ b/examples/v2/output.zsh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#compdef cliname
 #
 # Code generated by cmdcomp "$CMDCOMP_VERSION". DO NOT EDIT.
 # For more information about cmdcomp, please refer to https://github.com/yassun7010/cmdcomp .