diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 33294dee7d7f..0050aa56b0fa 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -590,6 +590,7 @@ static int ramoops_init_przs(const char *name,
 	}
 
 	zone_sz = mem_sz / *cnt;
+	zone_sz = ALIGN_DOWN(zone_sz, 2);
 	if (!zone_sz) {
 		dev_err(dev, "%s zone size == 0\n", name);
 		goto fail;