diff --git a/man3/dlopen.3 b/man3/dlopen.3
index 3363f5120..b657e5ea9 100644
--- a/man3/dlopen.3
+++ b/man3/dlopen.3
@@ -585,7 +585,7 @@ main(void)
 
     /* According to the ISO C standard, casting between function
        pointers and 'void *', as done above, produces undefined results.
-       POSIX.1-2003 and POSIX.1-2008 accepted this state of affairs and
+       POSIX.1-2001 and POSIX.1-2008 accepted this state of affairs and
        proposed the following workaround:
 
            *(void **) (&cosine) = dlsym(handle, "cos");