diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
index c9075c87b..69c5c1ce1 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
@@ -1049,7 +1049,7 @@ public class Utilities {
         b.append("\\\\");
       else if (c == ' ')
         b.append(" ");
-      else if (isWhitespace(c)) {
+      else if (c == '\r' || c == '\n') { // was isWhitespace(c), but this escapes unicode characters, and seems unnecessary
         b.append("\\u"+Utilities.padLeft(Integer.toHexString(c), '0', 4));
       } else if (((int) c) < 32)
         b.append("\\u" + Utilities.padLeft(Integer.toHexString(c), '0', 4));