diff --git a/Test/400.tesc b/Test/400.tesc
index 0671d3bd..46e408f6 100644
--- a/Test/400.tesc
+++ b/Test/400.tesc
@@ -69,3 +69,7 @@ void foop()
     pv3 = fma(pv3, pv3, pv3);
     d = fma(d, d, d);
 }
+
+patch out pinbn {
+    int a;
+} pinbi;
diff --git a/Test/400.tese b/Test/400.tese
index 3e913e87..408d291a 100644
--- a/Test/400.tese
+++ b/Test/400.tese
@@ -99,3 +99,7 @@ layout(location = 23) out vec4 ovla[2];
 layout(location = 24) out vec4 ovlb[2];  // ERROR
 
 in float gl_TessLevelOuter[4];           // ERROR
+
+patch in pinbn {
+    int a;
+} pinbi;