diff --git a/c/src/librdbg/src/ptrace.c b/c/src/librdbg/src/ptrace.c
index ac564bb859..1286b507dd 100644
--- a/c/src/librdbg/src/ptrace.c
+++ b/c/src/librdbg/src/ptrace.c
@@ -28,7 +28,7 @@ extern unsigned int NbSerializedCtx;
 
 
 /* --------------------------------------------------------------------
-   return a pointer to the Tread Control structure of the specified
+   return a pointer to the Thread Control structure of the specified
    Id
    -------------------------------------------------------------------- */