diff --git a/org.hl7.fhir.utilities/src/main/resources/Messages.properties b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
index eca321a07..6022e6da2 100644
--- a/org.hl7.fhir.utilities/src/main/resources/Messages.properties
+++ b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
@@ -1107,6 +1107,7 @@ xml_attr_value_invalid = The XML Attribute {0} has an invalid character
 xml_encoding_invalid = The XML encoding is invalid (must be UTF-8)
 Bundle_BUNDLE_Entry_NotFound = Can''t find ''{0}'' in the bundle ({1})
 CONCEPTMAP_VS_CONCEPT_CODE_UNKNOWN_SYSTEM = The code ''{1}'' comes from the system {0} which could not be found, so it''s not known whether it''s valid in the value set ''{2}''
+CONCEPTMAP_VS_CONCEPT_CODE_UNKNOWN_SYSTEM_VERSION = The code ''{1}'' comes from the system {0} version {3} which could not be found, so it''s not known whether it''s valid in the value set ''{2}''
 SD_TYPE_PARAMETER_MISSING = The type definition ''{2}'' does not declare a type parameter, but it is derived from the type definition ''{0}'' which has the type parameter ''{1}'' 
 SD_TYPE_PARAMETER_UNKNOWN = The type definition ''{0}'' has the type parameter ''{1}'' but it is not a known type so derivation consistency cannot be checked
 SD_TYPE_PARAMETER_INVALID = The type definition ''{2}'' has a type parameter ''{3}'', which is not consistent with it''s ancestor type definition ''{0}'' which has the type parameter ''{1}''