diff --git a/third_party/lcms2-2.6/0000-tag-type-confusion.patch b/third_party/lcms2-2.6/0000-tag-type-confusion.patch
new file mode 100644
index 0000000..df94cb7
--- /dev/null
+++ b/third_party/lcms2-2.6/0000-tag-type-confusion.patch
@@ -0,0 +1,14 @@
+diff --git a/third_party/lcms2-2.6/src/cmsio0.c b/third_party/lcms2-2.6/src/cmsio0.c
+index 6549d15..5f9f08a 100644
+--- a/third_party/lcms2-2.6/src/cmsio0.c
++++ b/third_party/lcms2-2.6/src/cmsio0.c
+@@ -719,7 +719,8 @@ cmsBool _cmsReadHeader(_cmsICCPROFILE* Icc)
+         for (j=0; j < Icc ->TagCount; j++) {
+ 
+             if ((Icc ->TagOffsets[j] == Tag.offset) &&
+-                (Icc ->TagSizes[j]   == Tag.size)) {
++                (Icc ->TagSizes[j]   == Tag.size) &&
++                (Icc ->TagNames[j]   == Tag.sig)) {
+ 
+                 Icc ->TagLinked[Icc ->TagCount] = Icc ->TagNames[j];
+             }
diff --git a/third_party/lcms2-2.6/README.pdfium b/third_party/lcms2-2.6/README.pdfium
new file mode 100644
index 0000000..19d2f68
--- /dev/null
+++ b/third_party/lcms2-2.6/README.pdfium
@@ -0,0 +1,13 @@
+Name: Little CMS
+URL: http://www.littlecms.com/
+Version: 2.6
+Security Critical: yes
+License: MIT License
+
+Description:
+Color Management Engine.
+
+Local Modifications:
+
+0000-tag-type-confusion.patch: Fix a type confusion.
+TODO(ochang): List other patches.
diff --git a/third_party/lcms2-2.6/src/cmsio0.c b/third_party/lcms2-2.6/src/cmsio0.c
index 6549d15..5f9f08a 100644
--- a/third_party/lcms2-2.6/src/cmsio0.c
+++ b/third_party/lcms2-2.6/src/cmsio0.c
@@ -719,7 +719,8 @@
         for (j=0; j < Icc ->TagCount; j++) {
 
             if ((Icc ->TagOffsets[j] == Tag.offset) &&
-                (Icc ->TagSizes[j]   == Tag.size)) {
+                (Icc ->TagSizes[j]   == Tag.size) &&
+                (Icc ->TagNames[j]   == Tag.sig)) {
 
                 Icc ->TagLinked[Icc ->TagCount] = Icc ->TagNames[j];
             }