diff --git a/ecl/plugins/org.eclipse.rcptt.ecl.data/src/org/eclipse/rcptt/ecl/data/internal/commands/AssertTablesMatchService.java b/ecl/plugins/org.eclipse.rcptt.ecl.data/src/org/eclipse/rcptt/ecl/data/internal/commands/AssertTablesMatchService.java
index 95bfa81..5edf61f 100644
--- a/ecl/plugins/org.eclipse.rcptt.ecl.data/src/org/eclipse/rcptt/ecl/data/internal/commands/AssertTablesMatchService.java
+++ b/ecl/plugins/org.eclipse.rcptt.ecl.data/src/org/eclipse/rcptt/ecl/data/internal/commands/AssertTablesMatchService.java
@@ -112,7 +112,8 @@
 				Column rc = rightColumns.get(col);
 				String lv = leftRow.getValues().get(lc.index);
 				String rv = rightRow.getValues().get(rc.index);
-				if (!lv.equals(rv)) {
+				if (!(lv != null && rv != null && lv.equals(rv)
+						|| lv == null && rv == null)) {
 					return EclDataPlugin
 							.createErr(
 									"Tables differ at column '%s', %s: "