diff --git a/include/tidyplatform.h b/include/tidyplatform.h
index ea999c5..939a74b 100644
--- a/include/tidyplatform.h
+++ b/include/tidyplatform.h
@@ -92,9 +92,6 @@ extern "C" {
 #define MAC_OS
 #define FILENAMES_CASE_SENSITIVE 0
 #define strcasecmp strcmp
-#ifndef DFLT_REPL_CHARENC
-#define DFLT_REPL_CHARENC MACROMAN
-#endif
 #endif
 
 /* Convenience defines for BSD like platforms */
@@ -362,13 +359,6 @@ extern "C" {
 #include <unistd.h>  /* needed for unlink on some Unix systems */
 #endif
 
-/* This can be set at compile time.  Usually Windows,
-** except for Macintosh builds.
-*/
-#ifndef DFLT_REPL_CHARENC
-#define DFLT_REPL_CHARENC WIN1252
-#endif
-
 /* By default, use case-sensitive filename comparison.
 */
 #ifndef FILENAMES_CASE_SENSITIVE
diff --git a/src/lexer.c b/src/lexer.c
index 909211c..ace9452 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -1037,10 +1037,8 @@ static void ParseEntity( TidyDocImpl* doc, GetTokenMode mode )
                 uint c1 = 0;
                 int replaceMode = DISCARDED_CHAR;
             
-                if ( TY_(ReplacementCharEncoding) == WIN1252 )
-                    c1 = TY_(DecodeWin1252)( ch );
-                else if ( TY_(ReplacementCharEncoding) == MACROMAN )
-                    c1 = TY_(DecodeMacRoman)( ch );
+                /* Always assume Win1252 in this circumstance. */
+				c1 = TY_(DecodeWin1252)( ch );
 
                 if ( c1 )
                     replaceMode = REPLACED_CHAR;
diff --git a/src/streamio.c b/src/streamio.c
index 548f3d7..9742fe2 100644
--- a/src/streamio.c
+++ b/src/streamio.c
@@ -464,10 +464,7 @@ uint TY_(ReadChar)( StreamIn *in )
             uint c1 = 0, replMode = DISCARDED_CHAR;
             Bool isVendorChar = ( in->encoding == WIN1252 ||
                                   in->encoding == MACROMAN );
-            Bool isWinChar    = ( in->encoding == WIN1252 ||
-                                  TY_(ReplacementCharEncoding) == WIN1252 );
-            Bool isMacChar    = ( in->encoding == MACROMAN ||
-                                  TY_(ReplacementCharEncoding) == MACROMAN );
+            Bool isMacChar    = ( in->encoding == MACROMAN );
             
             /* set error position just before offending character */
             if (in->doc->lexer)
@@ -476,10 +473,10 @@ uint TY_(ReadChar)( StreamIn *in )
                 in->doc->lexer->columns = in->curcol;
             }
                 
-            if ( isWinChar )
-                c1 = TY_(DecodeWin1252)( c );
-            else if ( isMacChar )
-                c1 = TY_(DecodeMacRoman)( c );
+            if ( isMacChar )
+				c1 = TY_(DecodeMacRoman)( c );
+            else
+				c1 = TY_(DecodeWin1252)( c );
             if ( c1 )
                 replMode = REPLACED_CHAR;
                 
@@ -748,14 +745,7 @@ void TY_(WriteChar)( uint c, StreamOut* out )
 ** Miscellaneous / Helpers
 ****************************/
 
-/* char encoding used when replacing illegal SGML chars,
-** regardless of specified encoding.  Set at compile time
-** to either Windows or Mac.
-*/
-const int TY_(ReplacementCharEncoding) = DFLT_REPL_CHARENC;
-
-
-/* Mapping for Windows Western character set CP 1252 
+/* Mapping for Windows Western character set CP 1252
 ** (chars 128-159/U+0080-U+009F) to Unicode.
 */
 static const uint Win2Unicode[32] =
diff --git a/src/streamio.h b/src/streamio.h
index 6e2d4b6..696cea9 100644
--- a/src/streamio.h
+++ b/src/streamio.h
@@ -181,12 +181,6 @@ int TY_(GetCharEncodingFromOptName)(ctmbstr charenc);
 #endif
 
 
-/* char encoding used when replacing illegal SGML chars,
-** regardless of specified encoding.  Set at compile time
-** to either Windows or Mac.
-*/
-extern const int TY_(ReplacementCharEncoding);
-
 /* Function for conversion from Windows-1252 to Unicode */
 uint TY_(DecodeWin1252)(uint c);