diff --git a/repos/libports/ports/mupdf.hash b/repos/libports/ports/mupdf.hash
index f63e92296c..56077dfdfb 100644
--- a/repos/libports/ports/mupdf.hash
+++ b/repos/libports/ports/mupdf.hash
@@ -1 +1 @@
-ad2594a1438fe23d29267afedc124356648e4882
+83343537ec66dadb4a0b6063d3e69eae31990064
diff --git a/repos/libports/ports/mupdf.port b/repos/libports/ports/mupdf.port
index 9816a410ee..19c20b31d5 100644
--- a/repos/libports/ports/mupdf.port
+++ b/repos/libports/ports/mupdf.port
@@ -10,6 +10,8 @@ DIRS := include/mupdf
 DIR_CONTENT(include/mupdf) := $(addprefix src/lib/mupdf/,\
                                           pdf/mupdf.h xps/muxps.h fitz/fitz.h)
 
+PATCHES := $(sort $(wildcard $(REP_DIR)/src/lib/mupdf/*.patch))
+
 default: fix_include
 
 fix_include: $(DOWNLOADS)
diff --git a/repos/libports/src/lib/mupdf/gamma.patch b/repos/libports/src/lib/mupdf/gamma.patch
new file mode 100644
index 0000000000..275f020dfc
--- /dev/null
+++ b/repos/libports/src/lib/mupdf/gamma.patch
@@ -0,0 +1,9 @@
++++ src/lib/mupdf/apps/pdfapp.c
+@@ -397,6 +397,7 @@
+ 		fz_clear_pixmap_with_color(app->image, 255);
+ 		idev = fz_new_draw_device(app->cache, app->image);
+ 		fz_execute_display_list(app->page_list, idev, ctm, bbox);
++		fz_gamma_pixmap(app->image, 1.5);
+ 		fz_free_device(idev);
+ 	}
+