diff --git a/kcms/style/CMakeLists.txt b/kcms/style/CMakeLists.txt
--- a/kcms/style/CMakeLists.txt
+++ b/kcms/style/CMakeLists.txt
@@ -21,6 +21,8 @@
 
 add_library(kcm_style MODULE ${kcm_style_PART_SRCS})
 
+target_compile_definitions(kcm_style PUBLIC CMAKE_INSTALL_FULL_LIBEXECDIR="${CMAKE_INSTALL_FULL_LIBEXECDIR}")
+
 target_link_libraries(kcm_style
     Qt5::X11Extras
     Qt5::DBus
diff --git a/kcms/style/gtkpage.h b/kcms/style/gtkpage.h
--- a/kcms/style/gtkpage.h
+++ b/kcms/style/gtkpage.h
@@ -45,6 +45,9 @@
     QString gtk2ThemeFromConfig();
     QString gtk3ThemeFromConfig();
 
+    bool gtk2PreviewAvailable();
+    bool gtk3PreviewAvailable();
+
     void showGtk2Preview();
     void showGtk3Preview();
 
diff --git a/kcms/style/gtkpage.cpp b/kcms/style/gtkpage.cpp
--- a/kcms/style/gtkpage.cpp
+++ b/kcms/style/gtkpage.cpp
@@ -22,6 +22,7 @@
 #include <QUrl>
 #include <QDBusInterface>
 #include <QDBusReply>
+#include <QStandardPaths>
 
 #include <KTar>
 #include <KLocalizedString>
@@ -69,6 +70,16 @@
     return dbusReply.value();
 }
 
+bool GtkPage::gtk2PreviewAvailable()
+{
+    return !QStandardPaths::findExecutable(QStringLiteral("gtk_preview"), {CMAKE_INSTALL_FULL_LIBEXECDIR}).isEmpty();
+}
+
+bool GtkPage::gtk3PreviewAvailable()
+{
+    return !QStandardPaths::findExecutable(QStringLiteral("gtk3_preview"), {CMAKE_INSTALL_FULL_LIBEXECDIR}).isEmpty();
+}
+
 void GtkPage::showGtk2Preview()
 {
     gtkConfigInterface.call(QStringLiteral("showGtk2ThemePreview"), m_gtk2ThemesModel->selectedTheme());
diff --git a/kcms/style/package/contents/ui/GtkStylePage.qml b/kcms/style/package/contents/ui/GtkStylePage.qml
--- a/kcms/style/package/contents/ui/GtkStylePage.qml
+++ b/kcms/style/package/contents/ui/GtkStylePage.qml
@@ -89,6 +89,7 @@
                         icon.name: "preview"
                         text: i18n("Preview...")
                         onClicked: kcm.gtkPage.showGtk2Preview()
+                        visible: kcm.gtkPage.gtk2PreviewAvailable()
                     }
                 }
             }
@@ -128,6 +129,7 @@
                         icon.name: "preview"
                         text: i18n("Preview...")
                         onClicked: kcm.gtkPage.showGtk3Preview()
+                        visible: kcm.gtkPage.gtk3PreviewAvailable()
                     }
 
                 }