diff --git a/testbed/testplugin.c b/testbed/testplugin.c
index db8991e4..9a7c8329 100755
--- a/testbed/testplugin.c
+++ b/testbed/testplugin.c
@@ -807,7 +807,7 @@ static cmsPluginTag HiddenTagPluginSample = {
 
 static cmsPluginTag HiddenTagPluginSample2 = {
 
-    { cmsPluginMagicNumber, 2060, cmsPluginTagSig, &HiddenTagPluginSample},
+    { cmsPluginMagicNumber, 2060, cmsPluginTagSig, (cmsPluginBase*) &HiddenTagPluginSample},
     SigInt32,  {  1, 1, { cmsSigUInt32ArrayType }, NULL }
 };
 
diff --git a/testbed/zoo_icc.c b/testbed/zoo_icc.c
index 36c50031..80acd7b8 100755
--- a/testbed/zoo_icc.c
+++ b/testbed/zoo_icc.c
@@ -60,13 +60,12 @@ void ReadAllRAWTags(cmsHPROFILE h)
 {
     cmsInt32Number i, n;
     cmsTagSignature sig;
-    cmsInt32Number len;
-
+    
     n = cmsGetTagCount(h);
     for (i=0; i < n; i++) {
 
         sig = cmsGetTagSignature(h, i);
-        len = cmsReadRawTag(h, sig, NULL, 0);
+        cmsReadRawTag(h, sig, NULL, 0);
     }
 }