diff --git a/spa/include/spa/pod/parser.h b/spa/include/spa/pod/parser.h
index 7bc701ef5..c6e33b113 100644
--- a/spa/include/spa/pod/parser.h
+++ b/spa/include/spa/pod/parser.h
@@ -232,7 +232,7 @@ static inline int spa_pod_parser_getv(struct spa_pod_parser *parser,
 				return -EINVAL;
 			if (--parser->depth < 0)
 				return -EINVAL;
-
+			/* fallthrough */
 		case '}':
 			it = &parser->iter[parser->depth];
 			current = spa_pod_iter_current(it);
diff --git a/spa/plugins/audioconvert/merger.c b/spa/plugins/audioconvert/merger.c
index f72697c0d..4cdb5cb46 100644
--- a/spa/plugins/audioconvert/merger.c
+++ b/spa/plugins/audioconvert/merger.c
@@ -476,6 +476,7 @@ impl_node_port_enum_params(struct spa_node *node,
 					SPA_PARAM_LIST_id, &SPA_POD_Id(list[*index]), 0);
 		else
 			return 0;
+		break;
 	}
 	case SPA_PARAM_EnumFormat:
 		if ((res = port_enum_formats(node, direction, port_id, index, &param, &b)) <= 0)
diff --git a/src/pipewire/link.c b/src/pipewire/link.c
index ec43e0193..4bd93d2c6 100644
--- a/src/pipewire/link.c
+++ b/src/pipewire/link.c
@@ -225,10 +225,12 @@ static int do_negotiate(struct pw_link *this, uint32_t in_state, uint32_t out_st
 		case -EIO:
 			current = NULL;
 			res = 0;
+			/* fallthrough */
 		case 1:
 			break;
 		case 0:
 			res = -EBADF;
+			/* fallthrough */
 		default:
 			asprintf(&error, "error get output format: %s", spa_strerror(res));
 			goto error;
@@ -258,10 +260,12 @@ static int do_negotiate(struct pw_link *this, uint32_t in_state, uint32_t out_st
 		case -EIO:
 			current = NULL;
 			res = 0;
+			/* fallthrough */
 		case 1:
 			break;
 		case 0:
 			res = -EBADF;
+			/* fallthrough */
 		default:
 			asprintf(&error, "error get input format: %s", spa_strerror(res));
 			goto error;