diff --git a/src/main/java/com/adobe/epubcheck/nav/NavChecker.java b/src/main/java/com/adobe/epubcheck/nav/NavChecker.java
index 26c01b2ad..a65525898 100644
--- a/src/main/java/com/adobe/epubcheck/nav/NavChecker.java
+++ b/src/main/java/com/adobe/epubcheck/nav/NavChecker.java
@@ -50,9 +50,9 @@ public class NavChecker implements ContentChecker, DocumentValidator
   @SuppressWarnings("unchecked")
   private final static ValidatorMap validatorMap = ValidatorMap.builder()
       .putAll(XMLValidators.NAV_30_RNC, XMLValidators.XHTML_30_SCH, XMLValidators.NAV_30_SCH)
-      .putAll(and(Predicates.or(profile(EPUBProfile.EDUPUB), hasPubType(OPFData.DC_TYPE_EDUPUB)),
-              not(
-                      hasProp(EpubCheckVocab.VOCAB.get(EpubCheckVocab.PROPERTIES.FIXED_LAYOUT))),
+      .putAll(
+          and(Predicates.or(profile(EPUBProfile.EDUPUB), hasPubType(OPFData.DC_TYPE_EDUPUB)),
+              not(hasProp(EpubCheckVocab.VOCAB.get(EpubCheckVocab.PROPERTIES.FIXED_LAYOUT))),
               not(hasProp(EpubCheckVocab.VOCAB.get(EpubCheckVocab.PROPERTIES.NON_LINEAR)))),
           XMLValidators.XHTML_EDUPUB_STRUCTURE_SCH, XMLValidators.XHTML_EDUPUB_SEMANTICS_SCH,
           XMLValidators.XHTML_IDX_SCH)
@@ -61,10 +61,9 @@ public class NavChecker implements ContentChecker, DocumentValidator
               mimetype("application/xhtml+xml"), version(EPUBVersion.VERSION_3)),
           XMLValidators.XHTML_DICT_SCH)
       .putAll(
-          and(or(profile(EPUBProfile.IDX), hasPubType(OPFData.DC_TYPE_INDEX),
-              hasProp(PackageVocabs.ITEM_VOCAB.get(PackageVocabs.ITEM_PROPERTIES.INDEX)),
+          and(or(hasProp(PackageVocabs.ITEM_VOCAB.get(PackageVocabs.ITEM_PROPERTIES.INDEX)),
               hasProp(EpubCheckVocab.VOCAB.get(EpubCheckVocab.PROPERTIES.IN_INDEX_COLLECTION))),
-          mimetype("application/xhtml+xml"), version(EPUBVersion.VERSION_3)),
+              mimetype("application/xhtml+xml"), version(EPUBVersion.VERSION_3)),
           XMLValidators.XHTML_IDX_SCH, XMLValidators.XHTML_IDX_INDEX_SCH)
       .build();
 
diff --git a/src/test/resources/epub-indexes/indexes-publication.feature b/src/test/resources/epub-indexes/indexes-publication.feature
index 098775493..22a8e0d40 100644
--- a/src/test/resources/epub-indexes/indexes-publication.feature
+++ b/src/test/resources/epub-indexes/indexes-publication.feature
@@ -22,9 +22,6 @@ Feature: EPUB Indexes ▸ Full Publication Checks
     When checking EPUB 'index-whole-pub-content-model-error'
     Then error RSC-005 is reported
     And the message contains 'An "index" must contain one and only one "index-entry-list"'
-    # FIXME #1122 this error shouldn’t be reported on the Nav Doc
-    Then error RSC-005 is reported
-    And the message contains 'At least one "index" element must be present in a document declared as an index in the OPF'
     And no other errors or warnings are reported
 
   Scenario: Report a single-file index with an invalid content model
@@ -47,16 +44,12 @@ Feature: EPUB Indexes ▸ Full Publication Checks
   Scenario: Verify an index publication
     Given EPUBCheck configured with the 'idx' profile
     When checking EPUB 'index-whole-pub-valid'
-    # FIXME #1122 this error shouldn’t be reported on the Nav Doc
-    Then error RSC-005 is reported
-    And the message contains 'At least one "index" element must be present in a document declared as an index in the OPF'
     And no other errors or warnings are reported
 
   Scenario: Report an index publication without an index
     Given EPUBCheck configured with the 'idx' profile
     When checking EPUB 'index-whole-pub-no-index-error'
-    # FIXME #1122 this error shouldn’t be reported on the Nav Doc
-    Then error RSC-005 is reported 2 times
+    Then error RSC-005 is reported
     And the message contains 'At least one "index" element must be present in a document declared as an index in the OPF'
     And no other errors or warnings are reported