diff --git a/reactos/lib/msimg32/msimg32.spec b/reactos/lib/msimg32/msimg32.spec
index 773084602a0..76b5075f8e9 100644
--- a/reactos/lib/msimg32/msimg32.spec
+++ b/reactos/lib/msimg32/msimg32.spec
@@ -1,5 +1,5 @@
 @ stdcall AlphaBlend(long long long long long long long long long long long) gdi32.GdiAlphaBlend
-@ stdcall DllInitialize(long long ptr) DllMain
+@ stdcall -private DllInitialize(long long ptr) DllMain
 @ stdcall GradientFill(long ptr long ptr long long) gdi32.GdiGradientFill
 @ stdcall TransparentBlt(long long long long long long long long long long long) gdi32.GdiTransparentBlt
 @ stdcall vSetDdrawflag()