diff --git a/dlls/gdiplus/gdiplus.spec b/dlls/gdiplus/gdiplus.spec
index 21e38283802..f081ad9e57d 100644
--- a/dlls/gdiplus/gdiplus.spec
+++ b/dlls/gdiplus/gdiplus.spec
@@ -477,7 +477,7 @@
 @ stub GdipSaveImageToFile
 @ stub GdipSaveImageToStream
 @ stub GdipScaleLineTransform
-@ stub GdipScaleMatrix
+@ stdcall GdipScaleMatrix(ptr long long long)
 @ stub GdipScalePathGradientTransform
 @ stub GdipScalePenTransform
 @ stub GdipScaleTextureTransform
diff --git a/dlls/gdiplus/matrix.c b/dlls/gdiplus/matrix.c
index c8eb6892d31..8c90211850f 100644
--- a/dlls/gdiplus/matrix.c
+++ b/dlls/gdiplus/matrix.c
@@ -93,6 +93,29 @@ GpStatus WINGDIPAPI GdipMultiplyMatrix(GpMatrix *matrix, GpMatrix* matrix2,
     return Ok;
 }
 
+GpStatus WINGDIPAPI GdipScaleMatrix(GpMatrix *matrix, REAL scaleX, REAL scaleY,
+    GpMatrixOrder order)
+{
+    REAL scale[6];
+
+    if(!matrix)
+        return InvalidParameter;
+
+    scale[0] = scaleX;
+    scale[1] = 0.0;
+    scale[2] = 0.0;
+    scale[3] = scaleY;
+    scale[4] = 0.0;
+    scale[5] = 0.0;
+
+    if(order == MatrixOrderAppend)
+        matrix_multiply(matrix->matrix, scale, matrix->matrix);
+    else
+        matrix_multiply(scale, matrix->matrix, matrix->matrix);
+
+    return Ok;
+}
+
 GpStatus WINGDIPAPI GdipTransformMatrixPoints(GpMatrix *matrix, GpPointF *pts,
                                               INT count)
 {
diff --git a/include/gdiplusflat.h b/include/gdiplusflat.h
index e3ab4e012ca..16026dc7d89 100644
--- a/include/gdiplusflat.h
+++ b/include/gdiplusflat.h
@@ -88,6 +88,7 @@ GpStatus WINGDIPAPI GdipTransformPath(GpPath*,GpMatrix*);
 GpStatus WINGDIPAPI GdipCreateMatrix2(REAL,REAL,REAL,REAL,REAL,REAL,GpMatrix**);
 GpStatus WINGDIPAPI GdipDeleteMatrix(GpMatrix*);
 GpStatus WINGDIPAPI GdipMultiplyMatrix(GpMatrix*,GpMatrix*,GpMatrixOrder);
+GpStatus WINGDIPAPI GdipScaleMatrix(GpMatrix*,REAL,REAL,GpMatrixOrder);
 GpStatus WINGDIPAPI GdipTransformMatrixPoints(GpMatrix*,GpPointF*,INT);
 
 GpStatus WINGDIPAPI GdipCreatePathIter(GpPathIterator**,GpPath*);