diff --git a/coderules/solutions/jetbrains.mps.coderules.test/jetbrains.mps.coderules.test.msd b/coderules/solutions/jetbrains.mps.coderules.test/jetbrains.mps.coderules.test.msd
index 85fd255c..f8b6841d 100644
--- a/coderules/solutions/jetbrains.mps.coderules.test/jetbrains.mps.coderules.test.msd
+++ b/coderules/solutions/jetbrains.mps.coderules.test/jetbrains.mps.coderules.test.msd
@@ -5,6 +5,9 @@
       <sourceRoot location="models" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
diff --git a/coderules/solutions/jetbrains.mps.coderules.typechecking.test/jetbrains.mps.coderules.typechecking.test.msd b/coderules/solutions/jetbrains.mps.coderules.typechecking.test/jetbrains.mps.coderules.typechecking.test.msd
index f6cd8280..475d5f8c 100644
--- a/coderules/solutions/jetbrains.mps.coderules.typechecking.test/jetbrains.mps.coderules.typechecking.test.msd
+++ b/coderules/solutions/jetbrains.mps.coderules.typechecking.test/jetbrains.mps.coderules.typechecking.test.msd
@@ -5,6 +5,9 @@
       <sourceRoot location="models" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
diff --git a/coderules/solutions/jetbrains.mps.logic.test/jetbrains.mps.logic.test.msd b/coderules/solutions/jetbrains.mps.logic.test/jetbrains.mps.logic.test.msd
index dab97fa7..66e2a75f 100644
--- a/coderules/solutions/jetbrains.mps.logic.test/jetbrains.mps.logic.test.msd
+++ b/coderules/solutions/jetbrains.mps.logic.test/jetbrains.mps.logic.test.msd
@@ -8,6 +8,9 @@
       <sourceRoot location="lib/mockito-core-2.0.3-beta.jar" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <stubModelEntries>
     <stubModelEntry path="${module}/lib/mockito-core-2.0.3-beta.jar" />
     <stubModelEntry path="${module}/lib/objenesis-2.1.jar" />
diff --git a/samples/fitch/solutions/samples.fitch.demo/samples.fitch.demo.msd b/samples/fitch/solutions/samples.fitch.demo/samples.fitch.demo.msd
index c0cdac12..9fdb6e22 100644
--- a/samples/fitch/solutions/samples.fitch.demo/samples.fitch.demo.msd
+++ b/samples/fitch/solutions/samples.fitch.demo/samples.fitch.demo.msd
@@ -4,7 +4,10 @@
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
     </modelRoot>
-  </models>
+  </models>  
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
diff --git a/samples/lambdacalc/solutions/samples.lambdacalc.demo/samples.lambdacalc.demo.msd b/samples/lambdacalc/solutions/samples.lambdacalc.demo/samples.lambdacalc.demo.msd
index acfd3585..354786ee 100644
--- a/samples/lambdacalc/solutions/samples.lambdacalc.demo/samples.lambdacalc.demo.msd
+++ b/samples/lambdacalc/solutions/samples.lambdacalc.demo/samples.lambdacalc.demo.msd
@@ -5,6 +5,9 @@
       <sourceRoot location="models" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.coderules.typechecking)</dependency>
diff --git a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
index 0f167fee..42784f91 100644
--- a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
@@ -5,6 +5,9 @@
       <sourceRoot location="models" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd b/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
index 635b0ebd..9c38ae73 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
+++ b/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
@@ -5,6 +5,9 @@
       <sourceRoot location="models" />
     </modelRoot>
   </models>
+  <facets>
+    <facet type="tests" />
+  </facets>
   <sourcePath />
   <dependencies>
     <dependency reexport="true">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>