diff --git a/Modules/_sqlite/cursor.h b/Modules/_sqlite/cursor.h
index 9a5e9eede23..29f52b92189 100644
--- a/Modules/_sqlite/cursor.h
+++ b/Modules/_sqlite/cursor.h
@@ -54,5 +54,4 @@ typedef struct
 
 int pysqlite_cursor_setup_types(PyObject *module);
 
-#define UNKNOWN (-1)
 #endif
diff --git a/Modules/_sqlite/prepare_protocol.h b/Modules/_sqlite/prepare_protocol.h
index f24cef54971..afc55a8c1c4 100644
--- a/Modules/_sqlite/prepare_protocol.h
+++ b/Modules/_sqlite/prepare_protocol.h
@@ -32,5 +32,4 @@ typedef struct
 
 int pysqlite_prepare_protocol_setup_types(PyObject *module);
 
-#define UNKNOWN (-1)
 #endif