diff --git a/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOSE_data.c b/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOSE_data.c
index 77fbfc0..7ca7f1a 100644
--- a/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOSE_data.c
+++ b/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOSE_data.c
@@ -60,9 +60,9 @@ int reset_params(struct PRM *prm, long *, int *, int *);
 int fill_shift_data(int, int, int, int, int, char *, char *, FILE *);
 int handle_prf_change_ALOSE(struct PRM *, FILE *, long *, int); 
 
-struct 	sardata_record r1;
-struct	sardata_descriptor_ALOSE dfd;
-struct	sardata_info_ALOSE sdr;
+static struct sardata_record r1;
+static struct sardata_descriptor_ALOSE dfd;
+static struct sardata_info_ALOSE sdr;
 
 /*
 differences in include file from ALOS AUIG 
diff --git a/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOS_data.c b/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOS_data.c
index 87d7465..dd21713 100644
--- a/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOS_data.c
+++ b/components/isceobj/Sensor/src/ALOS_pre_process/read_ALOS_data.c
@@ -67,9 +67,9 @@ int reset_params(struct PRM *prm, long *, int *, int *);
 int fill_shift_data(int, int, int, int, int, char *, char *, FILE *);
 int handle_prf_change(struct PRM *, FILE *, long *, int); 
 
-struct 	sardata_record r1;
-struct	sardata_descriptor dfd;
-struct	sardata_info sdr;
+static struct sardata_record r1;
+static struct sardata_descriptor dfd;
+static struct sardata_info sdr;
 
 long read_ALOS_data (FILE *imagefile, FILE *outfile, struct PRM *prm, long *byte_offset) {