diff --git a/src/main/java/org/openrewrite/kotlin/internal/KotlinTreeParserVisitor.java b/src/main/java/org/openrewrite/kotlin/internal/KotlinTreeParserVisitor.java
index cab83f1ba..b159eb7d3 100644
--- a/src/main/java/org/openrewrite/kotlin/internal/KotlinTreeParserVisitor.java
+++ b/src/main/java/org/openrewrite/kotlin/internal/KotlinTreeParserVisitor.java
@@ -774,7 +774,9 @@ public J visitNamedDeclaration(KtNamedDeclaration declaration, ExecutionContext
     @Override
     public J visitNullableType(KtNullableType nullableType, ExecutionContext data) {
         J j = requireNonNull(nullableType.getInnerType()).accept(this, data);
-        return j.withMarkers(j.getMarkers().addIfAbsent(new IsNullable(randomId(), suffix(nullableType.getInnerType()))));
+        return j.withMarkers(j.getMarkers().addIfAbsent(new IsNullable(randomId(),
+                prefix((PsiElement) nullableType.getQuestionMarkNode())
+        )));
     }
 
     @Override
@@ -1803,7 +1805,7 @@ public J visitBlockExpression(KtBlockExpression expression, ExecutionContext dat
         }
 
         boolean hasBraces = expression.getLBrace() != null;
-        Space end = hasBraces ? endFixPrefixAndInfix(expression.getRBrace()) : endFix(expression);
+        Space end = hasBraces ? deepPrefix(expression.getRBrace()) : Space.EMPTY;
 
         Space prefix = prefix(expression);
         Space blockPrefix = prefix;
diff --git a/src/test/java/org/openrewrite/kotlin/tree/FunctionTypeTest.java b/src/test/java/org/openrewrite/kotlin/tree/FunctionTypeTest.java
index 6272faac4..1314934de 100644
--- a/src/test/java/org/openrewrite/kotlin/tree/FunctionTypeTest.java
+++ b/src/test/java/org/openrewrite/kotlin/tree/FunctionTypeTest.java
@@ -88,7 +88,7 @@ void parenthesizedNullableType() {
         rewriteRun(
           kotlin(
             """
-              val v: ((Any) -> Any)? = null
+              val v: (  (   Any )  -> Any) /*c1*/  ? = null
               """
           )
         );
diff --git a/src/test/java/org/openrewrite/kotlin/tree/KTSTest.java b/src/test/java/org/openrewrite/kotlin/tree/KTSTest.java
index 62fffe889..edaecace4 100644
--- a/src/test/java/org/openrewrite/kotlin/tree/KTSTest.java
+++ b/src/test/java/org/openrewrite/kotlin/tree/KTSTest.java
@@ -32,7 +32,7 @@ void topLevelAssignmentExpression() {
         rewriteRun(
           kotlinScript("""
             var x = 5
-            x += 1
+            x += 1 /*C1*/
             """)
         );
     }