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 f25a74d069..4410c3693c 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
@@ -679,9 +679,13 @@ class Router(formatOps: FormatOps) {
           // https://github.com/scalameta/scalafmt/pull/1516
           // https://github.com/scalameta/scalafmt/issues/1528
           case t: Init => t.parent.forall(_.is[Mod.Annot])
-          case t @ Term.Name(name) if isSymbolicName(name) =>
+          case Term.Name(name) =>
             style.spaces.afterTripleEquals && name == "===" ||
-            style.spaces.afterSymbolicDefs && t.parent.exists(isDefDef)
+            (rightOwner match {
+              case _: Member.ParamClause =>
+                style.spaces.afterSymbolicDefs && isSymbolicName(name)
+              case _ => false
+            })
           case _: Defn.ExtensionGroup =>
             style.spaces.afterKeywordBeforeParen && left.is[soft.KwExtension]
           case _ => false
diff --git a/scalafmt-core/shared/src/main/scala/org/scalafmt/util/TreeOps.scala b/scalafmt-core/shared/src/main/scala/org/scalafmt/util/TreeOps.scala
index 65645eb207..04fd901d25 100644
--- a/scalafmt-core/shared/src/main/scala/org/scalafmt/util/TreeOps.scala
+++ b/scalafmt-core/shared/src/main/scala/org/scalafmt/util/TreeOps.scala
@@ -323,12 +323,6 @@ object TreeOps {
   )(implicit classifier: Classifier[Tree, A]): Boolean =
     findTreeWithParentOfType[A](tree).isDefined
 
-  def isDefDef(tree: Tree): Boolean =
-    tree match {
-      case _: Decl.Def | _: Defn.Def | _: Defn.Macro => true
-      case _ => false
-    }
-
   @tailrec
   def defDefBody(tree: Tree): Option[Tree] =
     tree match {