X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=alpha_multiplication_effect.h;fp=alpha_multiplication_effect.h;h=2425a427e2764822287f3f54443fb5f896e61f32;hp=c64f2dce050d075f4230d9beca8841f173fb7ce0;hb=37f56fcbe571b2322243f6de59494bf9e0cbb37a;hpb=d7b26059d60a5debd032b4a3e887b612b19dd488

diff --git a/alpha_multiplication_effect.h b/alpha_multiplication_effect.h
index c64f2dc..2425a42 100644
--- a/alpha_multiplication_effect.h
+++ b/alpha_multiplication_effect.h
@@ -3,6 +3,8 @@
 
 // Convert postmultiplied alpha to premultiplied alpha, simply by multiplying.
 
+#include <string>
+
 #include "effect.h"
 
 class AlphaMultiplicationEffect : public Effect {