diff --git a/res/res_adsi.c b/res/res_adsi.c
index 664157c51..149381a0c 100644
--- a/res/res_adsi.c
+++ b/res/res_adsi.c
@@ -179,6 +179,7 @@ static int adsi_careful_send(struct ast_channel *chan, unsigned char *buf, int l
 		outf.samples = amt;
 		if (ast_write(chan, &outf)) {
 			ast_log(LOG_WARNING, "Failed to carefully write frame\n");
+			ast_frfree(inf);
 			return -1;
 		}
 		/* Update pointers and lengths */
@@ -242,6 +243,7 @@ static int __adsi_transmit_messages(struct ast_channel *chan, unsigned char **ms
 						if (!chan->adsicpe)
 							chan->adsicpe = AST_ADSI_UNAVAILABLE;
 						errno =	ENOSYS;
+						ast_frfree(f);
 						return -1;
 					}
 				}