diff --git a/src/nimqml/private/dotherside.nim b/src/nimqml/private/dotherside.nim
index b2569e0..6b191fb 100644
--- a/src/nimqml/private/dotherside.nim
+++ b/src/nimqml/private/dotherside.nim
@@ -129,6 +129,7 @@ proc dos_qapplication_enable_hdpi() {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qapplication_create() {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qapplication_exec() {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qapplication_quit() {.cdecl, dynlib: dynLibName, importc.}
+proc dos_qapplication_icon(filename: cstring) {.cdecl, dynlib: dynLibName, importc.}
 proc dos_qapplication_delete() {.cdecl, dynlib: dynLibName, importc.}
 
 # QGuiApplication
diff --git a/src/nimqml/private/qapplication.nim b/src/nimqml/private/qapplication.nim
index 53e5b59..6e72883 100644
--- a/src/nimqml/private/qapplication.nim
+++ b/src/nimqml/private/qapplication.nim
@@ -11,6 +11,9 @@ proc quit*(application: QApplication) =
   ## Quit the Qt event loop
   dos_qapplication_quit()
 
+proc icon*(application: QApplication, filename: string) =
+  dos_qapplication_icon(filename.cstring)
+
 proc delete*(application: QApplication) =
   ## Delete the given QApplication
   if application.deleted: