diff --git a/coders/tiff.c b/coders/tiff.c
index f5dc094..714d9d0 100644
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -1761,7 +1761,10 @@
   static const TIFFFieldInfo
     TIFFExtensions[] =
     {
-      { 37724, -3, -3, TIFF_UNDEFINED, FIELD_CUSTOM, 1, 1, "PhotoshopLayerData" }
+      {
+        37724, -3, -3, TIFF_UNDEFINED, FIELD_CUSTOM, 1, 1,
+          (char *) "PhotoshopLayerData"
+      }
     };
 
   TIFFMergeFieldInfo(tiff,TIFFExtensions,sizeof(TIFFExtensions)/