diff --git a/core/src/main/java/com/google/googlejavaformat/Doc.java b/core/src/main/java/com/google/googlejavaformat/Doc.java
index 01a75846..6414a3fb 100644
--- a/core/src/main/java/com/google/googlejavaformat/Doc.java
+++ b/core/src/main/java/com/google/googlejavaformat/Doc.java
@@ -397,6 +397,10 @@ boolean isReal() {
     private final Indent plusIndentCommentsBefore;
     private final Optional<Indent> breakAndIndentTrailingComment;
 
+    private Input.Tok tok() {
+      return token.getTok();
+    }
+
     private Token(
         Input.Token token,
         RealOrImaginary realOrImaginary,
@@ -465,7 +469,8 @@ public void add(DocBuilder builder) {
 
     @Override
     int computeWidth() {
-      return token.getTok().length();
+      int idx = Newlines.firstBreak(tok().getOriginalText());
+      return (idx >= 0) ? MAX_LINE_WIDTH : tok().length();
     }
 
     @Override
@@ -480,8 +485,7 @@ Range<Integer> computeRange() {
 
     @Override
     public State computeBreaks(CommentsHelper commentsHelper, int maxWidth, State state) {
-      String text = token.getTok().getOriginalText();
-      return state.withColumn(state.column + text.length());
+      return state.withColumn(state.column + computeWidth());
     }
 
     @Override