diff --git a/crates/uv-cli/src/lib.rs b/crates/uv-cli/src/lib.rs
index 67a4e9aa50c28..cece6a4eb6834 100644
--- a/crates/uv-cli/src/lib.rs
+++ b/crates/uv-cli/src/lib.rs
@@ -3531,7 +3531,7 @@ pub struct RunArgs {
     ///
     /// uv includes the groups defined in `tool.uv.default-groups` by default.
     /// This disables that option, however, specific groups can still be included with `--group`.
-    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS)]
+    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS, value_parser = clap::builder::BoolishValueParser::new())]
     pub no_default_groups: bool,
 
     /// Only include dependencies from the specified dependency group.
@@ -3869,7 +3869,7 @@ pub struct SyncArgs {
     ///
     /// uv includes the groups defined in `tool.uv.default-groups` by default.
     /// This disables that option, however, specific groups can still be included with `--group`.
-    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS)]
+    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS, value_parser = clap::builder::BoolishValueParser::new())]
     pub no_default_groups: bool,
 
     /// Only include dependencies from the specified dependency group.
@@ -4684,7 +4684,7 @@ pub struct TreeArgs {
     ///
     /// uv includes the groups defined in `tool.uv.default-groups` by default.
     /// This disables that option, however, specific groups can still be included with `--group`.
-    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS)]
+    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS, value_parser = clap::builder::BoolishValueParser::new())]
     pub no_default_groups: bool,
 
     /// Only include dependencies from the specified dependency group.
@@ -4861,7 +4861,7 @@ pub struct ExportArgs {
     ///
     /// uv includes the groups defined in `tool.uv.default-groups` by default.
     /// This disables that option, however, specific groups can still be included with `--group`.
-    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS)]
+    #[arg(long, env = EnvVars::UV_NO_DEFAULT_GROUPS, value_parser = clap::builder::BoolishValueParser::new())]
     pub no_default_groups: bool,
 
     /// Only include dependencies from the specified dependency group.