diff --git a/pkl-formatter/src/main/kotlin/org/pkl/formatter/Builder.kt b/pkl-formatter/src/main/kotlin/org/pkl/formatter/Builder.kt
index 6ce74d172..89306e339 100644
--- a/pkl-formatter/src/main/kotlin/org/pkl/formatter/Builder.kt
+++ b/pkl-formatter/src/main/kotlin/org/pkl/formatter/Builder.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -1302,7 +1302,10 @@ internal class Builder(sourceText: String, private val grammarVersion: GrammarVe
   }
 
   private fun getBaseSeparator(prev: Node, next: Node): FormatNode? {
+
     return when {
+      endsInLineComment(prev) && endsInLineComment(next) -> mustForceLine()
+
       endsInLineComment(prev) -> {
         if (prev.linesBetween(next) > 1) {
           TWO_NEWLINES
diff --git a/pkl-formatter/src/test/files/FormatterSnippetTests/input/multi-line-comments.pkl b/pkl-formatter/src/test/files/FormatterSnippetTests/input/multi-line-comments.pkl
new file mode 100644
index 000000000..30ec97738
--- /dev/null
+++ b/pkl-formatter/src/test/files/FormatterSnippetTests/input/multi-line-comments.pkl
@@ -0,0 +1,7 @@
+import "pkl:json" // used for doc comments
+import "pkl:jsonnet"
+import "pkl:math" // used for doc comments
+import "pkl:pklbinary"
+import "pkl:protobuf"
+import "pkl:xml"
+import "pkl:yaml" // used for doc comments
\ No newline at end of file
diff --git a/pkl-formatter/src/test/files/FormatterSnippetTests/output/multi-line-comments.pkl b/pkl-formatter/src/test/files/FormatterSnippetTests/output/multi-line-comments.pkl
new file mode 100644
index 000000000..15bd7e970
--- /dev/null
+++ b/pkl-formatter/src/test/files/FormatterSnippetTests/output/multi-line-comments.pkl
@@ -0,0 +1,10 @@
+// used for doc comments
+// used for doc comments
+// used for doc comments
+import "pkl:json"
+import "pkl:jsonnet"
+import "pkl:math"
+import "pkl:pklbinary"
+import "pkl:protobuf"
+import "pkl:xml"
+import "pkl:yaml"
diff --git a/pkl-formatter/src/test/kotlin/org/pkl/formatter/FormatterTest.kt b/pkl-formatter/src/test/kotlin/org/pkl/formatter/FormatterTest.kt
index bbad59816..b9002f58e 100644
--- a/pkl-formatter/src/test/kotlin/org/pkl/formatter/FormatterTest.kt
+++ b/pkl-formatter/src/test/kotlin/org/pkl/formatter/FormatterTest.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.