diff --git a/ChangeLog b/ChangeLog
index 6a45d92..bb5303f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-02-17  Patrick Lam  <plam@mit.edu>
+	* src/fcint.h  (FC_CACHE_MAGIC):
+
+	Bump up magic version; we changed the binary format.
+
 2006-02-17  Patrick Lam  <plam@mit.edu>
 	* fc-cat/fc-cat.c (main):
 
diff --git a/src/fcint.h b/src/fcint.h
index fdf113a..d5ff9d5 100644
--- a/src/fcint.h
+++ b/src/fcint.h
@@ -251,7 +251,7 @@ typedef struct _FcStrBuf {
 } FcStrBuf;
 
 typedef struct _FcCache {
-    int	    magic;              /* 0xFC02FC02 */
+    int	    magic;              /* FC_CACHE_MAGIC */
     int	    count;              /* number of bytes of data in block */
     int     bank;               /* bank ID */
     int     pattern_count;      /* number of FcPatterns */
@@ -324,7 +324,7 @@ typedef struct _FcCaseFold {
  * cache which is then rewritten to the users home directory
  */
 
-#define FC_CACHE_MAGIC 0xFC02FC02
+#define FC_CACHE_MAGIC 0xFC02FC03
 
 typedef struct _FcGlobalCacheDir FcGlobalCacheDir;