diff --git a/main/file.c b/main/file.c
index 412bb0f3f668284447d96f7bc6d62eb8e1688394..d5298bb033757987f3243952ab4374db67a3386e 100644
--- a/main/file.c
+++ b/main/file.c
@@ -1054,6 +1054,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 			case AST_FRAME_CONTROL:
 				switch(fr->subclass) {
 				case AST_CONTROL_HANGUP:
+				case AST_CONTROL_BUSY:
 					ast_frfree(fr);
 					return -1;
 				case AST_CONTROL_RINGING: