diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,6 +31,7 @@
 include(ECMGenerateHeaders)
 include(ECMMarkNonGuiExecutable)
 include(KDEInstallDirs)
+include(ECMAddAppIcon)
 include(ECMInstallIcons)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -24,6 +24,8 @@
 
 kconfig_add_kcfg_files(kmahjongg_SRCS prefs.kcfgc)
 
+file(GLOB ICONS_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/../icons/*-apps-kmahjongg.png")
+ecm_add_app_icon(kmahjongg_SRCS ICONS ${ICONS_SRCS})
 add_executable(kmahjongg ${kmahjongg_SRCS})
 
 target_link_libraries(kmahjongg