diff --git a/desktop/kde/applications/kmailtransport/pspec.xml b/desktop/kde/applications/kmailtransport/pspec.xml
index da8bf6aa0c..101da43565 100644
--- a/desktop/kde/applications/kmailtransport/pspec.xml
+++ b/desktop/kde/applications/kmailtransport/pspec.xml
@@ -30,6 +30,7 @@
             <Dependency>cyrus-sasl-devel</Dependency>
             <Dependency>extra-cmake-modules</Dependency>
             <Dependency>boost-devel</Dependency>
+            <Dependency>ksmtp-devel</Dependency>
         </BuildDependencies>
      </Source>
 
@@ -39,6 +40,7 @@
         <RuntimeDependencies>
             <Dependency versionFrom="5.7.1">qt5-base</Dependency>
             <Dependency>ki18n</Dependency>
+            <Dependency>ksmtp</Dependency>
             <Dependency>kio</Dependency>
             <Dependency>libgcc</Dependency>
             <Dependency>kmime</Dependency>