diff --git a/src/modules/module-autolink.c b/src/modules/module-autolink.c
index e5eb800f8..6274bb78f 100644
--- a/src/modules/module-autolink.c
+++ b/src/modules/module-autolink.c
@@ -339,12 +339,12 @@ static void module_destroy(void *data)
 	free(impl);
 }
 
-const struct pw_module_events module_events = {
+static const struct pw_module_events module_events = {
 	PW_VERSION_MODULE_EVENTS,
         .destroy = module_destroy,
 };
 
-const struct pw_core_events core_events = {
+static const struct pw_core_events core_events = {
 	PW_VERSION_CORE_EVENTS,
         .global_added = core_global_added,
         .global_removed = core_global_removed,
diff --git a/src/modules/module-client-node.c b/src/modules/module-client-node.c
index 6d4ea11d2..5208c5715 100644
--- a/src/modules/module-client-node.c
+++ b/src/modules/module-client-node.c
@@ -96,7 +96,7 @@ static void module_destroy(void *data)
 	pw_factory_destroy(d->this);
 }
 
-const struct pw_module_events module_events = {
+static const struct pw_module_events module_events = {
 	PW_VERSION_MODULE_EVENTS,
 	.destroy = module_destroy,
 };
diff --git a/src/modules/module-client-node/protocol-native.c b/src/modules/module-client-node/protocol-native.c
index 854475700..d162f9625 100644
--- a/src/modules/module-client-node/protocol-native.c
+++ b/src/modules/module-client-node/protocol-native.c
@@ -858,7 +858,7 @@ static const struct pw_protocol_native_demarshal pw_protocol_native_client_node_
 	{ &client_node_demarshal_port_set_io, PW_PROTOCOL_NATIVE_REMAP },
 };
 
-const struct pw_protocol_marshal pw_protocol_native_client_node_marshal = {
+static const struct pw_protocol_marshal pw_protocol_native_client_node_marshal = {
 	PW_TYPE_INTERFACE__ClientNode,
 	PW_VERSION_CLIENT_NODE,
 	&pw_protocol_native_client_node_method_marshal,
diff --git a/src/modules/module-flatpak.c b/src/modules/module-flatpak.c
index 98306cc7f..3e55a14f0 100644
--- a/src/modules/module-flatpak.c
+++ b/src/modules/module-flatpak.c
@@ -488,7 +488,7 @@ static void client_resource_impl(void *data, struct pw_resource *resource)
 	}
 }
 
-const struct pw_client_events client_events = {
+static const struct pw_client_events client_events = {
 	PW_VERSION_CLIENT_EVENTS,
 	.resource_impl = client_resource_impl,
 };
@@ -537,7 +537,7 @@ core_global_removed(void *data, struct pw_global *global)
 	}
 }
 
-const struct pw_core_events core_events = {
+static const struct pw_core_events core_events = {
 	PW_VERSION_CORE_EVENTS,
 	.global_added = core_global_added,
 	.global_removed = core_global_removed,
@@ -747,7 +747,7 @@ static void module_destroy(void *data)
 	free(impl);
 }
 
-const struct pw_module_events module_events = {
+static const struct pw_module_events module_events = {
 	PW_VERSION_MODULE_EVENTS,
 	.destroy = module_destroy,
 };