diff --git a/scst/src/dev_handlers/scst_cdrom.c b/scst/src/dev_handlers/scst_cdrom.c
index 7f709ea15..ef0da692c 100644
--- a/scst/src/dev_handlers/scst_cdrom.c
+++ b/scst/src/dev_handlers/scst_cdrom.c
@@ -83,7 +83,7 @@ static int cdrom_attach(struct scst_device *dev)
 
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (params == NULL) {
-		PRINT_ERROR("Unable to allocate struct cdrom_params (size %d)",
+		PRINT_ERROR("Unable to allocate struct cdrom_params (size %zd)",
 			sizeof(*params));
 		res = -ENOMEM;
 		goto out;
diff --git a/scst/src/dev_handlers/scst_disk.c b/scst/src/dev_handlers/scst_disk.c
index 8ea089c15..8d57af382 100644
--- a/scst/src/dev_handlers/scst_disk.c
+++ b/scst/src/dev_handlers/scst_disk.c
@@ -181,7 +181,7 @@ static int disk_attach(struct scst_device *dev)
 
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (params == NULL) {
-		PRINT_ERROR("Unable to allocate struct disk_params (size %d)",
+		PRINT_ERROR("Unable to allocate struct disk_params (size %zd)",
 		                        sizeof(*params));
 		res = -ENOMEM;
 		goto out;
diff --git a/scst/src/dev_handlers/scst_modisk.c b/scst/src/dev_handlers/scst_modisk.c
index b2fcafdf9..bbf5dc3a0 100644
--- a/scst/src/dev_handlers/scst_modisk.c
+++ b/scst/src/dev_handlers/scst_modisk.c
@@ -168,7 +168,7 @@ static int modisk_attach(struct scst_device *dev)
 
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (params == NULL) {
-		PRINT_ERROR("Unable to allocate struct modisk_params (size %d)",
+		PRINT_ERROR("Unable to allocate struct modisk_params (size %zd)",
 			sizeof(*params));
 		res = -ENOMEM;
 		goto out;
diff --git a/scst/src/dev_handlers/scst_tape.c b/scst/src/dev_handlers/scst_tape.c
index 121d08579..63e727267 100644
--- a/scst/src/dev_handlers/scst_tape.c
+++ b/scst/src/dev_handlers/scst_tape.c
@@ -171,7 +171,7 @@ static int tape_attach(struct scst_device *dev)
 
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (params == NULL) {
-		PRINT_ERROR("Unable to allocate struct tape_params (size %d)",
+		PRINT_ERROR("Unable to allocate struct tape_params (size %zd)",
 			sizeof(*params));
 		res = -ENOMEM;
 		goto out;
diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index efe96b5fb..eebc25e62 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -842,8 +842,8 @@ static struct scst_vdisk_thr *vdisk_init_thr_data(
 
 	res = kmem_cache_zalloc(vdisk_thr_cachep, gfp_mask);
 	if (res == NULL) {
-		PRINT_ERROR("Unable to allocate struct scst_vdisk_thr (size %d)",
-			sizeof(*res));
+		PRINT_ERROR("Unable to allocate struct scst_vdisk_thr"
+			    " (size %zd)", sizeof(*res));
 		goto out;
 	}
 
diff --git a/scst/src/scst_mem.c b/scst/src/scst_mem.c
index d29b7c1f8..a2740530c 100644
--- a/scst/src/scst_mem.c
+++ b/scst/src/scst_mem.c
@@ -1647,7 +1647,7 @@ struct sgv_pool *sgv_pool_create(const char *name,
 
 	pool = kzalloc(sizeof(*pool), GFP_KERNEL);
 	if (pool == NULL) {
-		PRINT_ERROR("Allocation of sgv_pool failed (size %d)",
+		PRINT_ERROR("Allocation of sgv_pool failed (size %zd)",
 			sizeof(*pool));
 		goto out_unlock;
 	}