diff --git a/src/encauth/ocb3/ocb3_decrypt_last.c b/src/encauth/ocb3/ocb3_decrypt_last.c
index 35ba864..a932d53 100644
--- a/src/encauth/ocb3/ocb3_decrypt_last.c
+++ b/src/encauth/ocb3/ocb3_decrypt_last.c
@@ -93,7 +93,6 @@ LBL_ERR:
 #ifdef LTC_CLEAN_STACK
    zeromem(iOffset_star, MAXBLOCKSIZE);
    zeromem(iPad, MAXBLOCKSIZE);
-   zeromem(ocb, sizeof(*ocb));
 #endif
 
    return err;
diff --git a/src/encauth/ocb3/ocb3_encrypt_last.c b/src/encauth/ocb3/ocb3_encrypt_last.c
index 788a257..b21cfae 100644
--- a/src/encauth/ocb3/ocb3_encrypt_last.c
+++ b/src/encauth/ocb3/ocb3_encrypt_last.c
@@ -95,7 +95,6 @@ LBL_ERR:
 #ifdef LTC_CLEAN_STACK
    zeromem(iOffset_star, MAXBLOCKSIZE);
    zeromem(iPad, MAXBLOCKSIZE);
-   zeromem(ocb, sizeof(*ocb));
 #endif
 
    return err;