diff --git a/ChangeLog b/ChangeLog
index 794dbbbce..37811e95a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-10-09  Robert Larice
+ * src/frontend/measure.c ,
+ * src/frontend/numparam/mystring.c ,
+ * src/include/dstring.h ,
+ * src/misc/dstring.c :
+    remove #define for EOS  use '\0' instead
+
 2010-10-09  Robert Larice
  * src/frontend/terminal.c ,
  * src/include/complex.h ,
diff --git a/src/frontend/measure.c b/src/frontend/measure.c
index 3db54945e..5e0b549af 100644
--- a/src/frontend/measure.c
+++ b/src/frontend/measure.c
@@ -21,8 +21,6 @@
 
 #include "error.h" /* controlled_exit() */
  
-#define EOS  '\0'
-
 static wordlist *measure_parse_line( char *line ) ;
 
 static bool measure_valid[20000];/* TRUE: if measurement no. [xxx] has been done successfully
@@ -264,7 +262,7 @@ do_measure(
 
     /* New way of processing measure statements using common code 
        in fcn get_measure2() (com_measure2.c)*/
-    out_line[0] = EOS ;
+    out_line[0] = '\0' ;
     measure_word_list = measure_parse_line( meas_card->li_line) ;
     if( measure_word_list ){
       fail = get_measure2(measure_word_list,&result,out_line,chk_only) ;
diff --git a/src/frontend/numparam/mystring.c b/src/frontend/numparam/mystring.c
index 8e1c839e0..cbcde7dd6 100644
--- a/src/frontend/numparam/mystring.c
+++ b/src/frontend/numparam/mystring.c
@@ -22,8 +22,6 @@
 
 #include "../error.h" /* controlled_exit() */
 
-#define EOS  '\0'
-
 /***** primitive input-output ***/
 
 int
@@ -347,7 +345,7 @@ pscopy (SPICE_DSTRINGPTR dstr_p, char *t, int start, int leng)
     s_p = spice_dstring_value(dstr_p) ;
     for (i = 0; i < leng; i++)
       s_p[i] = t[start + i];
-    s_p[leng] = EOS ;
+    s_p[leng] = '\0' ;
   } else {
     s_p = spice_dstring_reinit(dstr_p) ;
   }
@@ -373,7 +371,7 @@ pscopy_up (SPICE_DSTRINGPTR dstr_p, char *t, int start, int leng)
     s_p = spice_dstring_value(dstr_p) ;
     for (i = 0; i < leng; i++)
       s_p[i] = upcase ( t[start + i] ) ;
-    s_p[leng] = EOS ;
+    s_p[leng] = '\0' ;
   } else {
     s_p = spice_dstring_reinit(dstr_p) ;
   }
diff --git a/src/include/dstring.h b/src/include/dstring.h
index bea92ebfe..5e37d852a 100644
--- a/src/include/dstring.h
+++ b/src/include/dstring.h
@@ -3,7 +3,6 @@
 #ifndef DSTRING_H
 #define DSTRING_H
 
-#define EOS  '\0'
 /* -----------------------------------------------------------------
  * This structure is modified from Tcl.   We do this to avoid a
  * conflict and later add a conditional compile to just use the Tcl
diff --git a/src/misc/dstring.c b/src/misc/dstring.c
index 39fac66c0..7ebf34972 100644
--- a/src/misc/dstring.c
+++ b/src/misc/dstring.c
@@ -4,7 +4,10 @@ DESCRIPTION:This file contains the routines for manipulating dynamic strings.
 CONTENTS:   
 DATE:	    Wed Mar 24 18:38:28 CDT 2010
 REVISIONS:  $Log$
-REVISIONS:  Revision 1.2  2010-07-01 19:52:26  rlar
+REVISIONS:  Revision 1.3  2010-10-09 11:42:10  rlar
+REVISIONS:  remove #define for EOS  use '\0' instead
+REVISIONS:
+REVISIONS:  Revision 1.2  2010/07/01 19:52:26  rlar
 REVISIONS:  cast the return values of malloc() function calls
 REVISIONS:
 REVISIONS:  Revision 1.1  2010/03/25 22:44:38  dwarning
@@ -43,7 +46,7 @@ void spice_dstring_init(SPICE_DSTRINGPTR dsPtr)
     dsPtr->string = dsPtr->staticSpace ;
     dsPtr->length = 0 ;
     dsPtr->spaceAvl = SPICE_DSTRING_STATIC_SIZE ;
-    dsPtr->staticSpace[0] = EOS;
+    dsPtr->staticSpace[0] = '\0';
 } /* end spice_dstring_init() */
 
 /*
@@ -103,7 +106,7 @@ char *spice_dstring_append(SPICE_DSTRINGPTR dsPtr,char *string,int length)
 	    string < end; string++, dst++) {
 	*dst = *string ;
     }
-    *dst = EOS ;
+    *dst = '\0' ;
     dsPtr->length += length ;
 
     return(dsPtr->string) ;
@@ -119,7 +122,7 @@ char *spice_dstring_append_char( SPICE_DSTRINGPTR dstr_p, char c)
   char *val_p ;				/* return value */
 
   tmp_str[0] = c ;
-  tmp_str[1] = EOS ;
+  tmp_str[1] = '\0' ;
   val_p = spice_dstring_append( dstr_p, tmp_str, -1 ) ;
   return(val_p) ;
 } /* end spice_dstring_append_char() */
@@ -319,7 +322,7 @@ char *spice_dstring_setlength(SPICE_DSTRINGPTR dsPtr,int length)
     char *str_p ;			/* newly create string */
 
     str_p = _spice_dstring_setlength( dsPtr,length) ;
-    str_p[length] = EOS ;
+    str_p[length] = '\0' ;
     return( str_p ) ;
 
 } /* end spice_dstring_setlength() */
@@ -350,6 +353,6 @@ void spice_dstring_free(SPICE_DSTRINGPTR dsPtr)
     dsPtr->string = dsPtr->staticSpace ;
     dsPtr->length = 0 ;
     dsPtr->spaceAvl = SPICE_DSTRING_STATIC_SIZE;
-    dsPtr->staticSpace[0] = EOS ;
+    dsPtr->staticSpace[0] = '\0' ;
 
 } /* end spice_dstring_free() */