diff --git a/libpng-manual.txt b/libpng-manual.txt
index 2ce366d67..ce7bbd318 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -5173,7 +5173,7 @@ a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes
 it possible to skip IDAT chunks in the sequential reader.
 
 The machine-generated configure files are no longer included in branches
-libpng16 and later of the GIT repository.  They continue to be included
+libpng17 and later of the GIT repository.  They continue to be included
 in the tarball releases, however.
 
 Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT
diff --git a/libpng.3 b/libpng.3
index 5a3c89cb9..4bb92d422 100644
--- a/libpng.3
+++ b/libpng.3
@@ -5692,7 +5692,7 @@ a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes
 it possible to skip IDAT chunks in the sequential reader.
 
 The machine-generated configure files are no longer included in branches
-libpng16 and later of the GIT repository.  They continue to be included
+libpng17 and later of the GIT repository.  They continue to be included
 in the tarball releases, however.
 
 Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT