diff --git a/app/http/computermanager.cpp b/app/http/computermanager.cpp
index caeff7ea..50057b3c 100644
--- a/app/http/computermanager.cpp
+++ b/app/http/computermanager.cpp
@@ -146,8 +146,9 @@ bool NvComputer::update(NvComputer& that)
     return changed;
 }
 
-ComputerManager::ComputerManager()
-    : m_Polling(false)
+ComputerManager::ComputerManager(QObject *parent)
+    : QObject(parent),
+      m_Polling(false)
 {
     QSettings settings;
 
diff --git a/app/http/computermanager.h b/app/http/computermanager.h
index 96e57ec1..fe66ccb6 100644
--- a/app/http/computermanager.h
+++ b/app/http/computermanager.h
@@ -8,9 +8,9 @@
 class NvComputer
 {
 public:
-    NvComputer(QString address, QString serverInfo);
+    explicit NvComputer(QString address, QString serverInfo);
 
-    NvComputer(QSettings& settings);
+    explicit NvComputer(QSettings& settings);
 
     bool
     update(NvComputer& that);
@@ -214,7 +214,7 @@ class ComputerManager : public QObject
     Q_OBJECT
 
 public:
-    ComputerManager();
+    explicit ComputerManager(QObject *parent = nullptr);
 
     void startPolling();
 
diff --git a/app/http/nvhttp.h b/app/http/nvhttp.h
index 49ac4ca4..3c1a1aee 100644
--- a/app/http/nvhttp.h
+++ b/app/http/nvhttp.h
@@ -58,7 +58,7 @@ private:
 class NvHTTP
 {
 public:
-    NvHTTP(QString address);
+    explicit NvHTTP(QString address);
 
     static
     int
diff --git a/app/http/nvpairingmanager.h b/app/http/nvpairingmanager.h
index 7ea281c3..5a0ce218 100644
--- a/app/http/nvpairingmanager.h
+++ b/app/http/nvpairingmanager.h
@@ -19,7 +19,7 @@ public:
         ALREADY_IN_PROGRESS
     };
 
-    NvPairingManager(QString address);
+    explicit NvPairingManager(QString address);
 
     ~NvPairingManager();