diff --git a/src/libaktualizr/campaign/campaign.cc b/src/libaktualizr/campaign/campaign.cc
index 1341e6b96b..7e0b8443ec 100644
--- a/src/libaktualizr/campaign/campaign.cc
+++ b/src/libaktualizr/campaign/campaign.cc
@@ -68,7 +68,7 @@ void Campaign::getJson(Json::Value &out) const {
   out["metadata"][2]["value"] = std::to_string(estPreparationDuration);
 }
 
-std::vector<Campaign> campaignsFromJson(const Json::Value &json) {
+std::vector<Campaign> Campaign::campaignsFromJson(const Json::Value &json) {
   std::vector<Campaign> campaigns;
 
   Json::Value campaigns_array;
@@ -95,7 +95,7 @@ std::vector<Campaign> campaignsFromJson(const Json::Value &json) {
   return campaigns;
 }
 
-void JsonFromCampaigns(const std::vector<Campaign> &in, Json::Value &out) {
+void Campaign::JsonFromCampaigns(const std::vector<Campaign> &in, Json::Value &out) {
   out.clear();
   auto i = 0;
   Json::Value json;
@@ -106,7 +106,7 @@ void JsonFromCampaigns(const std::vector<Campaign> &in, Json::Value &out) {
   }
 }
 
-std::vector<Campaign> fetchAvailableCampaigns(HttpInterface &http_client, const std::string &tls_server) {
+std::vector<Campaign> Campaign::fetchAvailableCampaigns(HttpInterface &http_client, const std::string &tls_server) {
   HttpResponse response = http_client.get(tls_server + "/campaigner/campaigns", kMaxCampaignsMetaSize);
   if (!response.isOk()) {
     LOG_ERROR << "Failed to fetch list of available campaigns";
diff --git a/src/libaktualizr/campaign/campaign.h b/src/libaktualizr/campaign/campaign.h
index cb91f1d9a6..85cccc633f 100644
--- a/src/libaktualizr/campaign/campaign.h
+++ b/src/libaktualizr/campaign/campaign.h
@@ -29,6 +29,11 @@ static inline Cmd cmdFromName(const std::string &name) {
 
 // Out of uptane concept: update campaign for a device
 class Campaign {
+ public:
+  static std::vector<Campaign> campaignsFromJson(const Json::Value &json);
+  static void JsonFromCampaigns(const std::vector<Campaign> &in, Json::Value &out);
+  static std::vector<Campaign> fetchAvailableCampaigns(HttpInterface &http_client, const std::string &tls_server);
+
  public:
   Campaign() = default;
   Campaign(const Json::Value &json);
@@ -43,9 +48,6 @@ class Campaign {
   int estPreparationDuration{0};
 };
 
-std::vector<Campaign> campaignsFromJson(const Json::Value &json);
-void JsonFromCampaigns(const std::vector<Campaign> &in, Json::Value &out);
-std::vector<Campaign> fetchAvailableCampaigns(HttpInterface &http_client, const std::string &tls_server);
 }  // namespace campaign
 
 #endif
diff --git a/src/libaktualizr/campaign/campaign_test.cc b/src/libaktualizr/campaign/campaign_test.cc
index e1a3dfd5a7..21be1c7153 100644
--- a/src/libaktualizr/campaign/campaign_test.cc
+++ b/src/libaktualizr/campaign/campaign_test.cc
@@ -10,7 +10,7 @@ boost::filesystem::path test_data_dir;
 TEST(campaign, Campaigns_from_json) {
   auto json = Utils::parseJSONFile(test_data_dir / "campaigns_sample.json");
 
-  auto campaigns = campaign::campaignsFromJson(json);
+  auto campaigns = campaign::Campaign::campaignsFromJson(json);
   EXPECT_EQ(campaigns.size(), 1);
 
   EXPECT_EQ(campaigns.at(0).name, "campaign1");
@@ -27,7 +27,7 @@ TEST(campaign, Campaigns_from_json) {
   bad4["campaigns"][0] = Json::Value();
   bad4["campaigns"][0]["name"] = "a";
   bad4["campaigns"][0]["id"] = "a";
-  auto campaignsNoAutoAccept = campaign::campaignsFromJson(bad4);
+  auto campaignsNoAutoAccept = campaign::Campaign::campaignsFromJson(bad4);
   EXPECT_FALSE(campaignsNoAutoAccept.at(0).autoAccept);
 }
 
@@ -35,9 +35,9 @@ TEST(campaign, Campaigns_from_json) {
 TEST(campaign, Campaigns_to_json) {
   auto json = Utils::parseJSONFile(test_data_dir / "campaigns_sample.json");
 
-  auto campaigns = campaign::campaignsFromJson(json);
+  auto campaigns = campaign::Campaign::campaignsFromJson(json);
   Json::Value res;
-  JsonFromCampaigns(campaigns, res);
+  campaign::Campaign::JsonFromCampaigns(campaigns, res);
 
   EXPECT_EQ(res["campaigns"][0]["name"], "campaign1");
   EXPECT_EQ(res["campaigns"][0]["id"], "c2eb7e8d-8aa0-429d-883f-5ed8fdb2a493");
@@ -53,27 +53,27 @@ TEST(campaign, Campaigns_to_json) {
 
 TEST(campaign, Campaigns_from_invalid_json) {
   // empty object
-  EXPECT_EQ(campaign::campaignsFromJson(Json::Value()).size(), 0);
+  EXPECT_EQ(campaign::Campaign::campaignsFromJson(Json::Value()).size(), 0);
 
   // naked array
-  EXPECT_EQ(campaign::campaignsFromJson(Json::Value(Json::arrayValue)).size(), 0);
+  EXPECT_EQ(campaign::Campaign::campaignsFromJson(Json::Value(Json::arrayValue)).size(), 0);
 
   // object in object
   Json::Value bad1;
   bad1["campaigns"] = Json::Value();
-  EXPECT_EQ(campaign::campaignsFromJson(bad1).size(), 0);
+  EXPECT_EQ(campaign::Campaign::campaignsFromJson(bad1).size(), 0);
 
   // array in array in object
   Json::Value bad2;
   bad2["campaigns"] = Json::Value(Json::arrayValue);
   bad2["campaigns"][0] = Json::Value(Json::arrayValue);
-  EXPECT_EQ(campaign::campaignsFromJson(bad2).size(), 0);
+  EXPECT_EQ(campaign::Campaign::campaignsFromJson(bad2).size(), 0);
 
   // no name
   Json::Value bad3;
   bad3["campaigns"] = Json::Value(Json::arrayValue);
   bad3["campaigns"][0] = Json::Value();
-  EXPECT_EQ(campaign::campaignsFromJson(bad3).size(), 0);
+  EXPECT_EQ(campaign::Campaign::campaignsFromJson(bad3).size(), 0);
 }
 
 #ifndef __NO_MAIN__
diff --git a/src/libaktualizr/primary/sotauptaneclient.cc b/src/libaktualizr/primary/sotauptaneclient.cc
index 4a7f4e9494..add86c96b0 100644
--- a/src/libaktualizr/primary/sotauptaneclient.cc
+++ b/src/libaktualizr/primary/sotauptaneclient.cc
@@ -931,7 +931,7 @@ result::Install SotaUptaneClient::uptaneInstall(const std::vector<Uptane::Target
 }
 
 result::CampaignCheck SotaUptaneClient::campaignCheck() {
-  auto campaigns = campaign::fetchAvailableCampaigns(*http, config.tls.server);
+  auto campaigns = campaign::Campaign::fetchAvailableCampaigns(*http, config.tls.server);
   for (const auto &c : campaigns) {
     LOG_INFO << "Campaign: " << c.name;
     LOG_INFO << "Campaign id: " << c.id;
diff --git a/src/uptane_generator/repo.cc b/src/uptane_generator/repo.cc
index c87f9e5b13..392cd61f8a 100644
--- a/src/uptane_generator/repo.cc
+++ b/src/uptane_generator/repo.cc
@@ -240,7 +240,7 @@ void Repo::generateCampaigns() const {
   c.estPreparationDuration = 20;
 
   Json::Value json;
-  campaign::JsonFromCampaigns(campaigns, json);
+  campaign::Campaign::JsonFromCampaigns(campaigns, json);
 
   Utils::writeFile(path_ / "campaigns.json", Utils::jsonToCanonicalStr(json));
 }