diff --git a/src/conf/appearanceconfigpage.cpp b/src/conf/appearanceconfigpage.cpp
--- a/src/conf/appearanceconfigpage.cpp
+++ b/src/conf/appearanceconfigpage.cpp
@@ -49,7 +49,7 @@
     QVBoxLayout *lay = new QVBoxLayout(this);
     mWidget = new AppearanceConfigWidget(this);
     lay->addWidget(mWidget);
-    connect(mWidget, &AppearanceConfigWidget::changed, this, QOverload<>::of(&KCModule::changed));
+    connect(mWidget, &AppearanceConfigWidget::changed, this, QOverload<>::of(&Kleo::Config::AppearanceConfigurationPage::changed));
 
     load();
 }
diff --git a/src/conf/cryptooperationsconfigpage.cpp b/src/conf/cryptooperationsconfigpage.cpp
--- a/src/conf/cryptooperationsconfigpage.cpp
+++ b/src/conf/cryptooperationsconfigpage.cpp
@@ -48,7 +48,7 @@
     lay->setMargin(0);
     mWidget = new CryptoOperationsConfigWidget(this);
     lay->addWidget(mWidget);
-    connect(mWidget, &CryptoOperationsConfigWidget::changed, this, QOverload<>::of(&KCModule::changed));
+    connect(mWidget, &CryptoOperationsConfigWidget::changed, this, QOverload<>::of(&Kleo::Config::CryptoOperationsConfigurationPage::changed));
 
     load();
 }
diff --git a/src/conf/gnupgsystemconfigurationpage.cpp b/src/conf/gnupgsystemconfigurationpage.cpp
--- a/src/conf/gnupgsystemconfigurationpage.cpp
+++ b/src/conf/gnupgsystemconfigurationpage.cpp
@@ -55,7 +55,7 @@
                                      this);
     lay->addWidget(mWidget);
 
-    connect(mWidget, &CryptoConfigModule::changed, this, QOverload<>::of(&KCModule::changed));
+    connect(mWidget, &CryptoConfigModule::changed, this, QOverload<>::of(&Kleo::Config::GnuPGSystemConfigurationPage::changed));
 
     load();
 }
diff --git a/src/conf/smimevalidationconfigurationpage.cpp b/src/conf/smimevalidationconfigurationpage.cpp
--- a/src/conf/smimevalidationconfigurationpage.cpp
+++ b/src/conf/smimevalidationconfigurationpage.cpp
@@ -49,7 +49,7 @@
     mWidget = new SMimeValidationConfigurationWidget(this);
     lay->addWidget(mWidget);
 
-    connect(mWidget, &SMimeValidationConfigurationWidget::changed, this, QOverload<>::of(&KCModule::changed));
+    connect(mWidget, &SMimeValidationConfigurationWidget::changed, this, QOverload<>::of(&Kleo::Config::SMimeValidationConfigurationPage::changed));
 
     load();
 }