diff --git a/bika/lims/browser/analysisrequest/publish.py b/bika/lims/browser/analysisrequest/publish.py
index a821e07581..05016807d4 100644
--- a/bika/lims/browser/analysisrequest/publish.py
+++ b/bika/lims/browser/analysisrequest/publish.py
@@ -845,7 +845,6 @@ def publishFromHTML(self, aruid, results_html):
             report.edit(
                 AnalysisRequest=ar.UID(),
                 Pdf=pdf_report,
-                Html=results_html,
                 Recipients=recipients
             )
             report.unmarkCreationFlag()
diff --git a/bika/lims/content/arreport.py b/bika/lims/content/arreport.py
index 16266210df..97d39626ca 100644
--- a/bika/lims/content/arreport.py
+++ b/bika/lims/content/arreport.py
@@ -31,8 +31,6 @@
     ),
     BlobField('Pdf',
     ),
-    StringField('Html',
-    ),
     StringField('SMS',
     ),
     RecordsField('Recipients',
diff --git a/bika/lims/upgrade/v3_2_0_1705.py b/bika/lims/upgrade/v3_2_0_1705.py
index 2eb3e0e9fe..4dc15d2307 100644
--- a/bika/lims/upgrade/v3_2_0_1705.py
+++ b/bika/lims/upgrade/v3_2_0_1705.py
@@ -66,6 +66,9 @@ def upgrade(tool):
     if CATALOG_ANALYSIS_REQUEST_LISTING not in ut.refreshcatalog:
         ut.refreshcatalog.append(CATALOG_ANALYSIS_REQUEST_LISTING)
 
+    # Deleting 'Html' field from ARReport objects.
+    removeHtmlFromAR(portal)
+
     # Refresh affected catalogs
     ut.refreshCatalogs()
 
@@ -73,6 +76,24 @@ def upgrade(tool):
     return True
 
 
+def removeHtmlFromAR(portal):
+    """
+    'Html' StringField has been deleted from ARReport Schema.
+    Now removing this attribute from old objects to save some memory.
+    """
+    uc = getToolByName(portal, 'uid_catalog')
+    ar_reps = uc(portal_type='ARReport')
+    f_name = 'Html'
+    counter = 0
+    for ar in ar_reps:
+        obj = ar.getObject()
+        if hasattr(obj, f_name):
+            delattr(obj, f_name)
+            counter += 1
+
+    logger.info("'Html' attribute has been removed from %d ARReport objects."
+                % counter)
+
 def migareteFileFields(portal):
     """
     This function walks over all attachment types and migrates their FileField
@@ -99,3 +120,4 @@ def migareteFileFields(portal):
         logger.info(
             "Finished migration of FileField fields from {}."
             .format(portal_type))
+