diff --git a/libsrc/geos-common/const.inc b/libsrc/geos-common/const.inc
index e7958579c..ef78d75b8 100644
--- a/libsrc/geos-common/const.inc
+++ b/libsrc/geos-common/const.inc
@@ -286,7 +286,7 @@ OFF_FNAME		=	3
 OFF_GHDR_PTR		=	19
 OFF_GSTRUC_TYPE 	=	21
 OFF_GFILE_TYPE		=	22
-OFF_DATE		=	23
+OFF_YEAR		=	23
 OFF_SIZE		=	28
 OFF_NXT_FILE		=	32
 .else
@@ -296,7 +296,7 @@ OFF_FNAME		=	1
 OFF_GFILE_TYPE		=	16
 OFF_DE_TR_SC		=	17
 OFF_SIZE		=	21
-OFF_DATE		=	24
+OFF_YEAR		=	25
 OFF_GHDR_PTR		=	31
 OFF_NXT_FILE		=	39
 .endif