diff --git a/scalafmt-core/shared/src/main/scala/org/scalafmt/internal/Router.scala b/scalafmt-core/shared/src/main/scala/org/scalafmt/internal/Router.scala
index e5abdf58cf..6825a4cb21 100644
--- a/scalafmt-core/shared/src/main/scala/org/scalafmt/internal/Router.scala
+++ b/scalafmt-core/shared/src/main/scala/org/scalafmt/internal/Router.scala
@@ -1100,7 +1100,8 @@ class Router(formatOps: FormatOps) {
             else None
 
           val mustDangle = onlyConfigStyle ||
-            style.newlines.sourceIgnored && style.danglingParentheses.defnSite
+            style.danglingParentheses.defnSite &&
+            (style.newlines.sourceIgnored || !style.optIn.configStyleArguments)
           def noSplitPolicy: Policy =
             if (mustDangle || style.newlines.source.eq(Newlines.unfold))
               slbPolicy
@@ -1245,7 +1246,7 @@ class Router(formatOps: FormatOps) {
           } else if (
             mustDangleForTrailingCommas ||
             style.danglingParentheses.tupleOrCallSite(isTuple(leftOwner)) &&
-            style.newlines.sourceIgnored
+            (style.newlines.sourceIgnored || !style.optIn.configStyleArguments)
           )
             newlineBeforeClose & binPackOnelinePolicy
           else binPackOnelinePolicy
diff --git a/scalafmt-tests/src/test/resources/newlines/source_classic.stat b/scalafmt-tests/src/test/resources/newlines/source_classic.stat
index b5595a9323..b8d7b570fd 100644
--- a/scalafmt-tests/src/test/resources/newlines/source_classic.stat
+++ b/scalafmt-tests/src/test/resources/newlines/source_classic.stat
@@ -2553,7 +2553,8 @@ object a {
 object a {
   val foo = bar.map(x =>
     x.copy(
-      baz = Option.when(false)(x.qux))
+      baz = Option.when(false)(x.qux)
+    )
   )
 }
 <<< binPack with named parameter values, !danglingParentheses
@@ -2679,9 +2680,10 @@ object a {
 }
 >>>
 object a {
-  protected def foo[U](bar: String,
-      baz: Seq[String] = Seq.empty)(
-      f: HttpResponse => U): U = qux
+  protected def foo[U](
+      bar: String,
+      baz: Seq[String] = Seq.empty
+  )(f: HttpResponse => U): U = qux
 }
 <<< #1973 1
 maxColumn = 25
diff --git a/scalafmt-tests/src/test/resources/newlines/source_keep.stat b/scalafmt-tests/src/test/resources/newlines/source_keep.stat
index 02286788ac..61a163a5c1 100644
--- a/scalafmt-tests/src/test/resources/newlines/source_keep.stat
+++ b/scalafmt-tests/src/test/resources/newlines/source_keep.stat
@@ -2641,7 +2641,8 @@ object a {
     bar.baz(Seq(
       Qux(
         "", 1, "par1", "2018-01-01", "2018-12-31", "2018-01-01", "2018-02-01", None, None, 1000,
-        Some(0), Some(1), foo = Some("bar"))
+        Some(0), Some(1), foo = Some("bar")
+      )
     ))
   )
 }
@@ -2666,7 +2667,8 @@ object a {
 >>>
 object a {
   private val audience3 = apiAudience(
-    3, "b_name", Sams, Inid, "2", "created-by-user2", "updated-by-user2").copy(
+    3, "b_name", Sams, Inid, "2", "created-by-user2", "updated-by-user2"
+  ).copy(
     updatedAt = nowDate.minusDays(15),
     audienceSizeOnsite = Some(3333),
     audienceSizeOffsite = Some(1)
@@ -2683,9 +2685,12 @@ object a {
 }
 >>>
 object a {
-  protected def foo[U](bar: String,
-      baz: Seq[String] = Seq.empty)(
-      f: HttpResponse => U): U = qux
+  protected def foo[U](
+      bar: String,
+      baz: Seq[String] = Seq.empty
+  )(
+      f: HttpResponse => U
+  ): U = qux
 }
 <<< #1973 1
 maxColumn = 25