diff --git a/coderules/languages/jetbrains.mps.typechecking.testlang/models/types.mps b/coderules/languages/jetbrains.mps.typechecking.testlang/models/types.mps
index 6fefa63f..e3f08260 100644
--- a/coderules/languages/jetbrains.mps.typechecking.testlang/models/types.mps
+++ b/coderules/languages/jetbrains.mps.typechecking.testlang/models/types.mps
@@ -14,9 +14,9 @@
   <imports>
     <import index="1g4i" ref="r:102178da-67ba-49f6-ba73-eb29fa352fe7(jetbrains.mps.typechecking)" />
     <import index="qulx" ref="r:ec0979fb-ae37-4823-9eaa-8550d9f5c6fd(jetbrains.mps.typechecking.testlang.structure)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
-    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" implicit="true" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
diff --git a/samples/fitch/languages/samples.fitch/models/types.mps b/samples/fitch/languages/samples.fitch/models/types.mps
index ffe00e34..676b3ed9 100644
--- a/samples/fitch/languages/samples.fitch/models/types.mps
+++ b/samples/fitch/languages/samples.fitch/models/types.mps
@@ -12,7 +12,7 @@
   <imports>
     <import index="jfgh" ref="r:2003997c-f9a6-418f-99d4-03e1285a3e13(samples.fitch.structure)" />
     <import index="1g4i" ref="r:102178da-67ba-49f6-ba73-eb29fa352fe7(jetbrains.mps.typechecking)" />
-    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" implicit="true" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" />
   </imports>
   <registry>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
diff --git a/samples/lambdacalc/languages/samples.lambdacalc/models/types.mps b/samples/lambdacalc/languages/samples.lambdacalc/models/types.mps
index 4bc58f76..0a5b385b 100644
--- a/samples/lambdacalc/languages/samples.lambdacalc/models/types.mps
+++ b/samples/lambdacalc/languages/samples.lambdacalc/models/types.mps
@@ -20,7 +20,7 @@
     <import index="bj13" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.logical(jetbrains.mps.logic.reactor/)" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" />
     <import index="1g4i" ref="r:102178da-67ba-49f6-ba73-eb29fa352fe7(jetbrains.mps.typechecking)" />
-    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" implicit="true" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" implicit="true" />
   </imports>
   <registry>
diff --git a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
index 8d5cf073..845e45ff 100644
--- a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
+++ b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
@@ -32,7 +32,7 @@
     <import index="9x2e" ref="r:0730b0d1-7e2f-4982-aac3-8069c5060a9c(jetbrains.mps.lang.typesystem2.reporting)" />
     <import index="2gg1" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.errors(MPS.Core/)" />
     <import index="zdap" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.util.text(MPS.IDEA/)" />
-    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" implicit="true" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.service)" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" implicit="true" />
   </imports>
   <registry>