diff --git a/src/c/wasm.rs b/src/c/wasm.rs
index 490ab11..9b028f6 100644
--- a/src/c/wasm.rs
+++ b/src/c/wasm.rs
@@ -54,7 +54,7 @@ pub mod types {
     #[allow(non_camel_case_types)]
     pub type c_schar = i8;
     #[allow(non_camel_case_types)]
-    pub type c_char = i8;
+    pub type c_char = std::ffi::c_char;
     #[allow(non_camel_case_types)]
     pub type c_uchar = u8;
     #[allow(non_camel_case_types)]