diff --git a/crate2nix/Cargo.nix b/crate2nix/Cargo.nix
index 0766ec62..a5b7ebc5 100644
--- a/crate2nix/Cargo.nix
+++ b/crate2nix/Cargo.nix
@@ -14,6 +14,8 @@
 , rootFeatures ? [ "default" ]
   # If true, throw errors instead of issueing deprecation warnings.
 , strictDeprecation ? false
+  # Elements to add to the `-C target-feature=` argument passed to `rustc`
+  # (separated by `,`, prefixed with `+`).
   # Used for conditional compilation based on CPU feature detection.
 , targetFeatures ? []
   # Whether to perform release builds: longer compile times, faster binaries.
diff --git a/crate2nix/templates/Cargo.nix.tera b/crate2nix/templates/Cargo.nix.tera
index 059427c3..50c9f8e0 100644
--- a/crate2nix/templates/Cargo.nix.tera
+++ b/crate2nix/templates/Cargo.nix.tera
@@ -16,6 +16,8 @@
 , rootFeatures ? [ "default" ]
   # If true, throw errors instead of issueing deprecation warnings.
 , strictDeprecation ? false
+  # Elements to add to the `-C target-feature=` argument passed to `rustc`
+  # (separated by `,`, prefixed with `+`).
   # Used for conditional compilation based on CPU feature detection.
 , targetFeatures ? []
   # Whether to perform release builds: longer compile times, faster binaries.
diff --git a/sample_projects/bin_with_git_submodule_dep/Cargo.nix b/sample_projects/bin_with_git_submodule_dep/Cargo.nix
index fcc0fbda..8212fe3b 100644
--- a/sample_projects/bin_with_git_submodule_dep/Cargo.nix
+++ b/sample_projects/bin_with_git_submodule_dep/Cargo.nix
@@ -14,6 +14,8 @@
 , rootFeatures ? [ "default" ]
   # If true, throw errors instead of issueing deprecation warnings.
 , strictDeprecation ? false
+  # Elements to add to the `-C target-feature=` argument passed to `rustc`
+  # (separated by `,`, prefixed with `+`).
   # Used for conditional compilation based on CPU feature detection.
 , targetFeatures ? []
   # Whether to perform release builds: longer compile times, faster binaries.
diff --git a/sample_projects/codegen/Cargo.nix b/sample_projects/codegen/Cargo.nix
index 3c874039..c3351881 100644
--- a/sample_projects/codegen/Cargo.nix
+++ b/sample_projects/codegen/Cargo.nix
@@ -14,6 +14,8 @@
 , rootFeatures ? [ "default" ]
   # If true, throw errors instead of issueing deprecation warnings.
 , strictDeprecation ? false
+  # Elements to add to the `-C target-feature=` argument passed to `rustc`
+  # (separated by `,`, prefixed with `+`).
   # Used for conditional compilation based on CPU feature detection.
 , targetFeatures ? []
   # Whether to perform release builds: longer compile times, faster binaries.
diff --git a/sample_projects/sub_dir_crates/Cargo.nix b/sample_projects/sub_dir_crates/Cargo.nix
index 966baec8..deeec281 100644
--- a/sample_projects/sub_dir_crates/Cargo.nix
+++ b/sample_projects/sub_dir_crates/Cargo.nix
@@ -14,6 +14,8 @@
 , rootFeatures ? [ "default" ]
   # If true, throw errors instead of issueing deprecation warnings.
 , strictDeprecation ? false
+  # Elements to add to the `-C target-feature=` argument passed to `rustc`
+  # (separated by `,`, prefixed with `+`).
   # Used for conditional compilation based on CPU feature detection.
 , targetFeatures ? []
   # Whether to perform release builds: longer compile times, faster binaries.