diff --git a/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionParams.scala b/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionParams.scala
index c71765dfa..1ffd58655 100644
--- a/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionParams.scala
+++ b/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionParams.scala
@@ -44,11 +44,6 @@ final case class ResolutionParams(
       )
     }
 
-  val repositories =
-    internalRepositories ++
-      mainRepositories ++
-      fallbackDependenciesRepositories
-
   lazy val resolutionKey = {
     val cleanCache = cache
       .withPool(null)
@@ -56,7 +51,9 @@ final case class ResolutionParams(
       .withSync[Task](null)
     SbtCoursierCache.ResolutionKey(
       dependencies,
-      repositories,
+      internalRepositories,
+      mainRepositories,
+      fallbackDependenciesRepositories,
       copy(
         parentProjectCache = Map.empty,
         loggerOpt = None,
diff --git a/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionRun.scala b/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionRun.scala
index d7b70912c..bd5993aab 100644
--- a/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionRun.scala
+++ b/modules/lm-coursier/src/main/scala/lmcoursier/internal/ResolutionRun.scala
@@ -19,11 +19,18 @@ object ResolutionRun {
     configs: Set[Configuration]
   ): Either[coursier.error.ResolutionError, Resolution] = {
 
-    val rules = params.strictOpt.map(s => Seq((s, RuleResolution.Fail))).getOrElse(Nil)
-
     val isCompileConfig =
+      configs(Configuration.compile)
+    val isCompileOrScalaToolConfig =
       configs(Configuration.compile) || configs(Configuration("scala-tool"))
 
+    val repositories =
+      params.internalRepositories.drop(if (isCompileConfig) 0 else 1) ++
+        params.mainRepositories ++
+        params.fallbackDependenciesRepositories
+
+    val rules = params.strictOpt.map(s => Seq((s, RuleResolution.Fail))).getOrElse(Nil)
+
     val printOptionalMessage = verbosityLevel >= 0 && verbosityLevel <= 1
 
     def depsRepr(deps: Seq[(Configuration, Dependency)]) =
@@ -46,7 +53,7 @@ object ResolutionRun {
       ).flatten.mkString("\n")
 
     if (verbosityLevel >= 2) {
-      val repoReprs = params.repositories.map {
+      val repoReprs = repositories.map {
         case r: IvyRepository =>
           s"ivy:${r.pattern}"
         case _: InterProjectRepository =>
@@ -76,14 +83,14 @@ object ResolutionRun {
               dep
           }
         )
-        .withRepositories(params.repositories)
+        .withRepositories(repositories)
         .withResolutionParams(
           params
             .params
-            .addForceVersion(params.interProjectDependencies.map(_.moduleVersion): _*)
-            .withForceScalaVersion(isCompileConfig && params.autoScalaLibOpt.nonEmpty)
+            .addForceVersion((if (isCompileConfig) params.interProjectDependencies.map(_.moduleVersion) else Nil): _*)
+            .withForceScalaVersion(isCompileOrScalaToolConfig && params.autoScalaLibOpt.nonEmpty)
             .withScalaVersion(params.autoScalaLibOpt.map(_._2))
-            .withTypelevel(params.params.typelevel && isCompileConfig)
+            .withTypelevel(params.params.typelevel && isCompileOrScalaToolConfig)
             .withRules(rules)
         )
         .withCache(
diff --git a/modules/lm-coursier/src/main/scala/lmcoursier/internal/SbtCoursierCache.scala b/modules/lm-coursier/src/main/scala/lmcoursier/internal/SbtCoursierCache.scala
index f46e58942..572059cc7 100644
--- a/modules/lm-coursier/src/main/scala/lmcoursier/internal/SbtCoursierCache.scala
+++ b/modules/lm-coursier/src/main/scala/lmcoursier/internal/SbtCoursierCache.scala
@@ -41,7 +41,9 @@ object SbtCoursierCache {
 
   final case class ResolutionKey(
     dependencies: Seq[(Configuration, Dependency)],
-    repositories: Seq[Repository],
+    internalRepositories: Seq[Repository],
+    mainRepositories: Seq[Repository],
+    fallbackRepositories: Seq[Repository],
     params: ResolutionParams,
     tmpCacheKey: Object, // temporary, until we can use https://github.com/coursier/coursier/pull/1090
     sbtClassifiers: Boolean
diff --git a/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/build.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/build.sbt
new file mode 100644
index 000000000..a82f1b0fe
--- /dev/null
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/build.sbt
@@ -0,0 +1,5 @@
+scalaVersion := "2.12.9"
+crossScalaVersions := Seq("2.12.8", "2.12.9") // shouldn't be the same version as coursier - putting two versions here to be sure one of them isn't
+organization := "org.scala-lang.modules"
+name := "scala-xml"
+version := "2.0.0-SNAPSHOT"
diff --git a/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/project/plugins.sbt b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/project/plugins.sbt
new file mode 100644
index 000000000..71a44ffd3
--- /dev/null
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/project/plugins.sbt
@@ -0,0 +1,13 @@
+addSbtPlugin {
+
+  val name = sys.props.getOrElse(
+    "plugin.name",
+    sys.error("plugin.name Java property not set")
+  )
+  val version = sys.props.getOrElse(
+    "plugin.version",
+    sys.error("plugin.version Java property not set")
+  )
+
+  "io.get-coursier" % name % version
+}
\ No newline at end of file
diff --git a/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/src/main/scala/Main.scala b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/src/main/scala/Main.scala
new file mode 100644
index 000000000..8c165902f
--- /dev/null
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/src/main/scala/Main.scala
@@ -0,0 +1,13 @@
+import java.io.File
+import java.nio.file.Files
+
+
+/**
+ * Azertyuiopqsdfghjklmwxcvbn
+ *
+ *  @author A
+ *  @param may not be `'''null'''`!!!
+ */
+object Main extends App {
+  Files.write(new File("output").toPath, "OK".getBytes("UTF-8"))
+}
diff --git a/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/test b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/test
new file mode 100644
index 000000000..d7c624ab5
--- /dev/null
+++ b/modules/sbt-coursier/src/sbt-test/shared-1/inter-project-scala-tool/test
@@ -0,0 +1 @@
+> +doc