diff --git a/crypto/comp/c_zlib.c b/crypto/comp/c_zlib.c
index 0f34597e7..0e503bf17 100644
--- a/crypto/comp/c_zlib.c
+++ b/crypto/comp/c_zlib.c
@@ -727,6 +727,7 @@ static long bio_zlib_ctrl(BIO *b, int cmd, long num, void *ptr)
 	case BIO_CTRL_RESET:
 		ctx->ocount = 0;
 		ctx->odone = 0;
+		ret = 1;
 		break;
 
 	case BIO_CTRL_FLUSH:
@@ -771,7 +772,7 @@ static long bio_zlib_ctrl(BIO *b, int cmd, long num, void *ptr)
 				}
 			ctx->obufsize = obs;
 			}
-
+		ret = 1;
 		break;
 
 	case BIO_C_DO_STATE_MACHINE: