diff --git a/schemars/src/json_schema_impls/os.rs b/schemars/src/json_schema_impls/ffi.rs
similarity index 71%
rename from schemars/src/json_schema_impls/os.rs
rename to schemars/src/json_schema_impls/ffi.rs
index ec4dcbf..027ded2 100644
--- a/schemars/src/json_schema_impls/os.rs
+++ b/schemars/src/json_schema_impls/ffi.rs
@@ -1,7 +1,7 @@
 use crate::gen::SchemaGenerator;
 use crate::schema::*;
 use crate::JsonSchema;
-use std::ffi::{OsStr, OsString};
+use std::ffi::{CStr, CString, OsStr, OsString};
 
 impl JsonSchema for OsString {
     fn schema_name() -> String {
@@ -40,3 +40,27 @@ impl JsonSchema for OsStr {
         <OsString>::json_schema(gen)
     }
 }
+
+impl JsonSchema for CString {
+    no_ref_schema!();
+
+    fn schema_name() -> String {
+        <Vec<u8>>::schema_name()
+    }
+
+    fn json_schema(gen: &mut SchemaGenerator) -> Schema {
+        <Vec<u8>>::json_schema(gen)
+    }
+}
+
+impl JsonSchema for CStr {
+    no_ref_schema!();
+
+    fn schema_name() -> String {
+        <Vec<u8>>::schema_name()
+    }
+
+    fn json_schema(gen: &mut SchemaGenerator) -> Schema {
+        <Vec<u8>>::json_schema(gen)
+    }
+}
diff --git a/schemars/src/json_schema_impls/mod.rs b/schemars/src/json_schema_impls/mod.rs
index 42f6426..432cbb8 100644
--- a/schemars/src/json_schema_impls/mod.rs
+++ b/schemars/src/json_schema_impls/mod.rs
@@ -10,8 +10,8 @@ mod array;
 #[cfg(feature = "chrono")]
 mod chrono;
 mod core;
+mod ffi;
 mod maps;
-mod os;
 mod primitives;
 mod sequences;
 mod serdejson;
diff --git a/schemars/tests/os.rs b/schemars/tests/ffi.rs
similarity index 100%
rename from schemars/tests/os.rs
rename to schemars/tests/ffi.rs