diff --git a/libpng.3 b/libpng.3
index c77ba5de4..376f983d0 100644
--- a/libpng.3
+++ b/libpng.3
@@ -580,10 +580,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.5.2beta02
 
 \fI\fB
 
-\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP
-
-\fI\fB
-
 \fBvoid png_set_expand_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP
 
 \fI\fB