diff --git a/reader.cpp b/reader.cpp
index a1074627d..94074b7f4 100644
--- a/reader.cpp
+++ b/reader.cpp
@@ -2162,7 +2162,7 @@ static void set_command_line_and_position(const wcstring &new_str, size_t pos)
     reader_repaint();
 }
 
-void reader_replace_current_token(const wchar_t *new_token)
+static void reader_replace_current_token(const wchar_t *new_token)
 {
 
     const wchar_t *begin, *end;
diff --git a/reader.h b/reader.h
index 0ead2aa40..28340ad7a 100644
--- a/reader.h
+++ b/reader.h
@@ -216,11 +216,6 @@ void reader_set_exit_on_interrupt(bool flag);
 */
 int exit_status();
 
-/**
-   Replace the current token with the specified string
-*/
-void reader_replace_current_token(const wchar_t *new_token);
-
 /**
    The readers interrupt signal handler. Cancels all currently running blocks.
 */