diff --git a/org.hl7.fhir.dstu3/src/main/java/org/hl7/fhir/dstu3/utils/ResourceUtilities.java b/org.hl7.fhir.dstu3/src/main/java/org/hl7/fhir/dstu3/utils/ResourceUtilities.java
index 0694f0a56..7343423c1 100644
--- a/org.hl7.fhir.dstu3/src/main/java/org/hl7/fhir/dstu3/utils/ResourceUtilities.java
+++ b/org.hl7.fhir.dstu3/src/main/java/org/hl7/fhir/dstu3/utils/ResourceUtilities.java
@@ -85,13 +85,13 @@ public class ResourceUtilities {
 		StringBuilder b = new StringBuilder();
 		for (OperationOutcomeIssueComponent t : error.getIssue())
 			if (t.getSeverity() == IssueSeverity.ERROR)
-				b.append("Error:" +gen(t.getDetails())+"\r\n");
+				b.append("Error: " +gen(t.getDetails())+"\r\n");
 			else if (t.getSeverity() == IssueSeverity.FATAL)
-				b.append("Fatal:" +gen(t.getDetails())+"\r\n");
+				b.append("Fatal: " +gen(t.getDetails())+"\r\n");
 			else if (t.getSeverity() == IssueSeverity.WARNING)
-				b.append("Warning:" +gen(t.getDetails())+"\r\n");
+				b.append("Warning: " +gen(t.getDetails())+"\r\n");
 			else if (t.getSeverity() == IssueSeverity.INFORMATION)
-				b.append("Information:" +gen(t.getDetails())+"\r\n");
+				b.append("Information: " +gen(t.getDetails())+"\r\n");
 		return b.toString();
   }
 
diff --git a/org.hl7.fhir.r4/src/main/java/org/hl7/fhir/r4/utils/ResourceUtilities.java b/org.hl7.fhir.r4/src/main/java/org/hl7/fhir/r4/utils/ResourceUtilities.java
index 6a49ad860..38ab37fc8 100644
--- a/org.hl7.fhir.r4/src/main/java/org/hl7/fhir/r4/utils/ResourceUtilities.java
+++ b/org.hl7.fhir.r4/src/main/java/org/hl7/fhir/r4/utils/ResourceUtilities.java
@@ -81,13 +81,13 @@ public class ResourceUtilities {
       if (first) first = false; else b.append("\r\n");
       String txt = t.hasDiagnostics() ? t.getDiagnostics() : gen(t.getDetails());
       if (t.getSeverity() == IssueSeverity.ERROR)
-        b.append("Error:" + txt);
+        b.append("Error: " + txt);
       else if (t.getSeverity() == IssueSeverity.FATAL)
-        b.append("Fatal:" + txt);
+        b.append("Fatal: " + txt);
       else if (t.getSeverity() == IssueSeverity.WARNING)
-        b.append("Warning:" + txt);
+        b.append("Warning: " + txt);
       else if (t.getSeverity() == IssueSeverity.INFORMATION)
-        b.append("Information:" + txt);
+        b.append("Information: " + txt);
     }
     return b.toString();
   }
diff --git a/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/utils/ResourceUtilities.java b/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/utils/ResourceUtilities.java
index eb2569b98..373f7af1e 100644
--- a/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/utils/ResourceUtilities.java
+++ b/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/utils/ResourceUtilities.java
@@ -79,13 +79,13 @@ public class ResourceUtilities {
     StringBuilder b = new StringBuilder();
     for (OperationOutcomeIssueComponent t : error.getIssue()) {
       if (t.getSeverity() == IssueSeverity.ERROR) {
-        b.append("Error:" + gen(t.getDetails()) + "\r\n");
+        b.append("Error: " + gen(t.getDetails()) + "\r\n");
       } else if (t.getSeverity() == IssueSeverity.FATAL) {
-        b.append("Fatal:" + gen(t.getDetails()) + "\r\n");
+        b.append("Fatal: " + gen(t.getDetails()) + "\r\n");
       } else if (t.getSeverity() == IssueSeverity.WARNING) {
-        b.append("Warning:" + gen(t.getDetails()) + "\r\n");
+        b.append("Warning: " + gen(t.getDetails()) + "\r\n");
       } else if (t.getSeverity() == IssueSeverity.INFORMATION) {
-        b.append("Information:" + gen(t.getDetails()) + "\r\n");
+        b.append("Information: " + gen(t.getDetails()) + "\r\n");
       }
     }
     return b.toString();
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ResourceUtilities.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ResourceUtilities.java
index 030ee34a9..ddfe1d674 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ResourceUtilities.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ResourceUtilities.java
@@ -79,13 +79,13 @@ public class ResourceUtilities {
 		StringBuilder b = new StringBuilder();
 		for (OperationOutcomeIssueComponent t : error.getIssue()) {
 			if (t.getSeverity() == IssueSeverity.ERROR) {
-				b.append("Error:" +gen(t.getDetails())+"\r\n");
+				b.append("Error: " +gen(t.getDetails())+"\r\n");
 			} else if (t.getSeverity() == IssueSeverity.FATAL) {
-				b.append("Fatal:" +gen(t.getDetails())+"\r\n");
+				b.append("Fatal: " +gen(t.getDetails())+"\r\n");
 			} else if (t.getSeverity() == IssueSeverity.WARNING) {
-				b.append("Warning:" +gen(t.getDetails())+"\r\n");
+				b.append("Warning: " +gen(t.getDetails())+"\r\n");
 			} else if (t.getSeverity() == IssueSeverity.INFORMATION) {
-				b.append("Information:" +gen(t.getDetails())+"\r\n");
+				b.append("Information: " +gen(t.getDetails())+"\r\n");
 			}
 		}
 		return b.toString();