diff --git a/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala b/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
index 8c7ee6856..213518316 100644
--- a/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
+++ b/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
@@ -84,7 +84,11 @@ object BuildServerProtocol {
           sbtVersion.value,
           (ThisBuild / baseDirectory).value
         )
-      } else ()
+      } else {
+        val logger = streams.value.log
+        logger.warn("BSP is disabled for this build")
+        logger.info("add 'Global / bspEnabled := true' to enable BSP")
+      }
     },
     bspEnabled := true,
     bspWorkspace := bspWorkspaceSetting.value,