diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 6a690571..8b755594 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -6,3 +6,6 @@ f7dccf8d205c1d4f9bd5dbbf9680a6b9d175b444
 
 # Scala Steward: Reformat with scalafmt 3.7.17
 cc4f48597d3151542ecec3c159159e1793926314
+
+# Scala Steward: Reformat with scalafmt 3.8.0
+18a35197313ed7988f4d22b9e9180d1fb99d499b
diff --git a/.scalafmt.conf b/.scalafmt.conf
index e1fd888e..553fb677 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,3 +1,3 @@
 runner.dialect = scala3
-version = 3.7.17
+version = 3.8.0
 maxColumn = 120
\ No newline at end of file
diff --git a/core/src/main/scala/sttp/model/UriInterpolator.scala b/core/src/main/scala/sttp/model/UriInterpolator.scala
index 0481e494..d49eb9c2 100644
--- a/core/src/main/scala/sttp/model/UriInterpolator.scala
+++ b/core/src/main/scala/sttp/model/UriInterpolator.scala
@@ -398,8 +398,7 @@ object UriInterpolator {
       def doSplit(s: String): Unit = {
         split(s, sep, escape) match {
           case Left(x) =>
-            acc += StringToken(x)
-            ()
+            acc += StringToken(x)()
           case Right((before, separator, after)) =>
             acc += StringToken(before)
             acc += StringToken(separator.toString())
@@ -467,8 +466,7 @@ object UriInterpolator {
         split(t, SchemeEnd) match {
           case Left(_) => (u, t)
           case Right((schemeTokens, _, otherTokens)) =>
-            val scheme = tokensToString(schemeTokens)
-            (u.scheme(scheme), otherTokens)
+            val scheme = tokensToString(schemeTokens)(u.scheme(scheme), otherTokens)
         }
       }
     }