diff --git a/dlls/gdiplus/gdiplus.spec b/dlls/gdiplus/gdiplus.spec
index 3201d321ccb..13bcc3630c9 100644
--- a/dlls/gdiplus/gdiplus.spec
+++ b/dlls/gdiplus/gdiplus.spec
@@ -577,7 +577,7 @@
 @ stdcall GdipSetPenMiterLimit(ptr long)
 @ stdcall GdipSetPenMode(ptr long)
 @ stdcall GdipSetPenStartCap(ptr long)
-@ stub GdipSetPenTransform
+@ stdcall GdipSetPenTransform(ptr ptr)
 @ stub GdipSetPenUnit
 @ stdcall GdipSetPenWidth(ptr long)
 @ stdcall GdipSetPixelOffsetMode(ptr long)
diff --git a/dlls/gdiplus/pen.c b/dlls/gdiplus/pen.c
index 53e47f08f77..238eef115aa 100644
--- a/dlls/gdiplus/pen.c
+++ b/dlls/gdiplus/pen.c
@@ -404,6 +404,21 @@ GpStatus WINGDIPAPI GdipResetPenTransform(GpPen *pen)
     return NotImplemented;
 }
 
+GpStatus WINGDIPAPI GdipSetPenTransform(GpPen *pen, GpMatrix *matrix)
+{
+    static int calls;
+
+    TRACE("(%p,%p)\n", pen, matrix);
+
+    if(!pen || !matrix)
+        return InvalidParameter;
+
+    if(!(calls++))
+        FIXME("not implemented\n");
+
+    return NotImplemented;
+}
+
 GpStatus WINGDIPAPI GdipScalePenTransform(GpPen *pen, REAL sx, REAL sy, GpMatrixOrder order)
 {
     static int calls;