diff --git a/code/nel/src/misc/config_file/cf_bison.simple b/code/nel/src/misc/config_file/cf_bison.simple
index 3ab0e5b1a..64e930f27 100644
--- a/code/nel/src/misc/config_file/cf_bison.simple
+++ b/code/nel/src/misc/config_file/cf_bison.simple
@@ -328,7 +328,7 @@ yynewstate:
 #endif
 
       /* Get the current used size of the three stacks, in elements.  */
-      int size = yyssp - yyss + 1;
+      int size = (int)(yyssp - yyss + 1);
 
 #ifdef yyoverflow
       /* Each stack pointer address is followed by the size of
diff --git a/code/nel/src/misc/config_file/cf_flex.skl b/code/nel/src/misc/config_file/cf_flex.skl
index 5da2aa3f6..b69bed057 100644
--- a/code/nel/src/misc/config_file/cf_flex.skl
+++ b/code/nel/src/misc/config_file/cf_flex.skl
@@ -1000,7 +1000,7 @@ int yyFlexLexer::yyinput()
 
 		else
 			{ /* need more input */
-			int offset = yy_c_buf_p - yytext_ptr;
+			int offset = (int)(yy_c_buf_p - yytext_ptr);
 			++yy_c_buf_p;
 
 			switch ( yy_get_next_buffer() )
diff --git a/code/nel/src/misc/config_file/cf_lexical.cpp b/code/nel/src/misc/config_file/cf_lexical.cpp
index f47696ff9..80fd4fd36 100644
--- a/code/nel/src/misc/config_file/cf_lexical.cpp
+++ b/code/nel/src/misc/config_file/cf_lexical.cpp
@@ -2773,7 +2773,7 @@ static int input()
 
 		else
 			{ /* need more input */
-			int offset = yy_c_buf_p - yytext_ptr;
+			int offset = (int)(yy_c_buf_p - yytext_ptr);
 			++yy_c_buf_p;
 
 			switch ( yy_get_next_buffer() )