diff --git a/fusee/fusee-primary/src/se.c b/fusee/fusee-primary/src/se.c
index e62757a7d..18e16bd99 100644
--- a/fusee/fusee-primary/src/se.c
+++ b/fusee/fusee-primary/src/se.c
@@ -542,13 +542,13 @@ void se_calculate_sha256(void *dst, const void *src, size_t src_size) {
     SECURITY_ENGINE->CONFIG_REG = (ENCMODE_SHA256 | ALG_SHA | DST_HASHREG);
     SECURITY_ENGINE->SHA_CONFIG_REG = 1;
     SECURITY_ENGINE->SHA_MSG_LENGTH_REG = (uint32_t)(src_size << 3);
+    SECURITY_ENGINE->_0x208 = 0;
     SECURITY_ENGINE->_0x20C = 0;
     SECURITY_ENGINE->_0x210 = 0;
-    SECURITY_ENGINE->SHA_MSG_LEFT_REG = 0;
-    SECURITY_ENGINE->_0x218 = (uint32_t)(src_size << 3);
+    SECURITY_ENGINE->SHA_MSG_LEFT_REG = (uint32_t)(src_size << 3);
+    SECURITY_ENGINE->_0x218 = 0;
     SECURITY_ENGINE->_0x21C = 0;
     SECURITY_ENGINE->_0x220 = 0;
-    SECURITY_ENGINE->_0x224 = 0;
 
     /* Trigger the operation. */
     trigger_se_blocking_op(OP_START, NULL, 0, src, src_size);