diff --git a/docs/reference/gio/gio-sections.txt b/docs/reference/gio/gio-sections.txt
index 3669d89b6..057895fc9 100644
--- a/docs/reference/gio/gio-sections.txt
+++ b/docs/reference/gio/gio-sections.txt
@@ -2027,7 +2027,7 @@ g_converter_output_stream_get_type
 <SECTION>
 <FILE>gzcompressor</FILE>
 <TITLE>GZlibCompressor</TITLE>
-GZLibCompressor
+GZlibCompressor
 GZlibCompressorFormat
 g_zlib_compressor_new
 <SUBSECTION Standard>
@@ -2045,7 +2045,7 @@ g_zlib_compressor_get_type
 <SECTION>
 <FILE>gzdecompressor</FILE>
 <TITLE>GZlibDecompressor</TITLE>
-GZLibDecompressor
+GZlibDecompressor
 g_zlib_decompressor_new
 <SUBSECTION Standard>
 GZlibDecompressorClass
diff --git a/gio/gzlibcompressor.c b/gio/gzlibcompressor.c
index 4c722e2a9..fa657faca 100644
--- a/gio/gzlibcompressor.c
+++ b/gio/gzlibcompressor.c
@@ -46,8 +46,8 @@ enum {
  * @short_description: Zlib compressor
  * @include: gio/gio.h
  *
- * #GZlibCompressor is an implementation of #GCompressor that
- * decompresses data compressed with zlib.
+ * #GZlibCompressor is an implementation of #GConverter that
+ * compresses data using zlib.
  */
 
 static void g_zlib_compressor_iface_init          (GConverterIface *iface);
diff --git a/gio/gzlibdecompressor.c b/gio/gzlibdecompressor.c
index 4a3cd21f9..439ac7c85 100644
--- a/gio/gzlibdecompressor.c
+++ b/gio/gzlibdecompressor.c
@@ -45,7 +45,7 @@ enum {
  * @short_description: Zlib decompressor
  * @include: gio/gio.h
  *
- * #GZlibDecompressor is an implementation of #GDecompressor that
+ * #GZlibDecompressor is an implementation of #GConverter that
  * decompresses data compressed with zlib.
  */