diff --git a/main/src/main/scala/sbt/Main.scala b/main/src/main/scala/sbt/Main.scala
index 07cfbec51..d570e6bba 100644
--- a/main/src/main/scala/sbt/Main.scala
+++ b/main/src/main/scala/sbt/Main.scala
@@ -827,8 +827,8 @@ object BuiltinCommands {
     sbtVersionOpt.foreach(
       version =>
         if (version != app.id.version()) {
-          state.log.warn(s"""sbt version mismatch, using: ${app.id
-            .version()}, in build.properties: "$version".""")
+          state.log.warn(s"""sbt version mismatch, current: ${app.id
+            .version()}, in build.properties: "$version", use 'reboot' to use the new value.""")
         }
     )
   }
diff --git a/sbt/src/sbt-test/project/sbt-version-change/build.sbt b/sbt/src/sbt-test/project/sbt-version-change/build.sbt
index 6d9dc4e80..8bc0b3ddf 100644
--- a/sbt/src/sbt-test/project/sbt-version-change/build.sbt
+++ b/sbt/src/sbt-test/project/sbt-version-change/build.sbt
@@ -3,6 +3,6 @@ TaskKey[Unit]("checkSbtVersionWarning") := {
 	val logging = state.globalLogging
 	val currVersion = state.configuration.provider.id.version()
 	val contents = IO.read(logging.backing.file)
-	assert(contents.contains(s"""sbt version mismatch, using: $currVersion, in build.properties: "1.1.1"."""))
+	assert(contents.contains(s"""sbt version mismatch, current: $currVersion, in build.properties: "1.1.1", use 'reboot' to use the new value."""))
 	()
 }
\ No newline at end of file