diff --git a/tests/capillary.DATA b/tests/capillary.DATA
index 89c938999..64429cf0c 100644
--- a/tests/capillary.DATA
+++ b/tests/capillary.DATA
@@ -19,6 +19,10 @@ PVDG
 200 0.005 0.2
 /
 
+PVTW
+1.0 1.0 4.0E-5 0.96 0.0
+/
+
 SWOF
 0.2 0 1 0.4
 1   1 0 0.1
diff --git a/tests/deadfluids.DATA b/tests/deadfluids.DATA
index 89232054b..bc88ccb59 100644
--- a/tests/deadfluids.DATA
+++ b/tests/deadfluids.DATA
@@ -19,6 +19,10 @@ PVDG
 200 0.02 0.2
 /
 
+PVTW
+1.0 1.0 4.0E-5 0.96 0.0
+/
+
 SWOF
 0 0 1 0
 1 1 0 0