diff --git a/src/liblzma/common/alone_encoder.c b/src/liblzma/common/alone_encoder.c
index 4853cfd1..402bebce 100644
--- a/src/liblzma/common/alone_encoder.c
+++ b/src/liblzma/common/alone_encoder.c
@@ -1,7 +1,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
-/// \file       alone_decoder.c
-/// \brief      Decoder for LZMA_Alone files
+/// \file       alone_encoder.c
+/// \brief      Encoder for LZMA_Alone files
 //
 //  Author:     Lasse Collin
 //
diff --git a/src/liblzma/common/block_util.c b/src/liblzma/common/block_util.c
index 00c7fe8d..acb31114 100644
--- a/src/liblzma/common/block_util.c
+++ b/src/liblzma/common/block_util.c
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
-/// \file       block_header.c
+/// \file       block_util.c
 /// \brief      Utility functions to handle lzma_block
 //
 //  Author:     Lasse Collin
diff --git a/src/liblzma/common/common.c b/src/liblzma/common/common.c
index 0053a6aa..cf714e5e 100644
--- a/src/liblzma/common/common.c
+++ b/src/liblzma/common/common.c
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
-/// \file       common.h
+/// \file       common.c
 /// \brief      Common functions needed in many places in liblzma
 //
 //  Author:     Lasse Collin
diff --git a/src/liblzma/common/filter_common.h b/src/liblzma/common/filter_common.h
index 42a26a24..9390305c 100644
--- a/src/liblzma/common/filter_common.h
+++ b/src/liblzma/common/filter_common.h
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
-/// \file       filter_common.c
+/// \file       filter_common.h
 /// \brief      Filter-specific stuff common for both encoder and decoder
 //
 //  Author:     Lasse Collin
diff --git a/src/liblzma/common/filter_decoder.h b/src/liblzma/common/filter_decoder.h
index a2e255fe..2dac6028 100644
--- a/src/liblzma/common/filter_decoder.h
+++ b/src/liblzma/common/filter_decoder.h
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
-/// \file       filter_decoder.c
+/// \file       filter_decoder.h
 /// \brief      Filter ID mapping to filter-specific functions
 //
 //  Author:     Lasse Collin
diff --git a/src/liblzma/common/filter_flags_encoder.c b/src/liblzma/common/filter_flags_encoder.c
index d110566d..b57b9fd8 100644
--- a/src/liblzma/common/filter_flags_encoder.c
+++ b/src/liblzma/common/filter_flags_encoder.c
@@ -1,7 +1,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       filter_flags_encoder.c
-/// \brief      Decodes a Filter Flags field
+/// \brief      Encodes a Filter Flags field
 //
 //  Author:     Lasse Collin
 //