diff --git a/src/fallback.h b/src/fallback.h
index f3252c149..0623ec54a 100644
--- a/src/fallback.h
+++ b/src/fallback.h
@@ -23,19 +23,6 @@ int fish_wcswidth(const wchar_t *str, size_t n);
 #define WCHAR_MAX INT_MAX
 #endif
 
-/**
-   Make sure __func__ is defined to some string. In C99, this should
-   be the currently compiled function. If we aren't using C99 or
-   later, older versions of GCC had __FUNCTION__.
-*/
-#if __STDC_VERSION__ < 199901L
-# if __GNUC__ >= 2
-#  define __func__ __FUNCTION__
-# else
-#  define __func__ "<unknown>"
-# endif
-#endif
-
 /**
    Under curses, tputs expects an int (*func)(char) as its last
    parameter, but in ncurses, tputs expects a int (*func)(int) as its