diff --git a/lib/py/src/protocol/fastbinary.c b/lib/py/src/protocol/fastbinary.c
index 2ce5660..4133e98 100644
--- a/lib/py/src/protocol/fastbinary.c
+++ b/lib/py/src/protocol/fastbinary.c
@@ -332,7 +332,7 @@
 }
 
 
-/* --- MAIN RECURSIVE OUTPUT FUCNTION -- */
+/* --- MAIN RECURSIVE OUTPUT FUNCTION -- */
 
 static int
 output_val(PyObject* output, PyObject* value, TType type, PyObject* typeargs) {
@@ -936,7 +936,7 @@
 }
 
 
-/* --- MAIN RECURSIVE INPUT FUCNTION --- */
+/* --- MAIN RECURSIVE INPUT FUNCTION --- */
 
 // Returns a new reference.
 static PyObject*