diff --git a/app/controllers/mpa/pept2data_controller.rb b/app/controllers/mpa/pept2data_controller.rb
index 07b464c..29c2546 100644
--- a/app/controllers/mpa/pept2data_controller.rb
+++ b/app/controllers/mpa/pept2data_controller.rb
@@ -14,11 +14,11 @@ def pept2data
     end
 
     # Request the suffix array search service
-    search_results = search(peptides, equate_il)
+    @response = search(peptides, equate_il).uniq
 
     # Collect all lca's to look up the lineages
     taxa = []
-    search_results["result"].each do |result|
+    @response.each do |result|
       taxa.append(result["lca"])
     end
 
@@ -26,7 +26,5 @@ def pept2data
     Lineage.find(taxa).each do |lineage|
       @lineages[lineage.taxon_id] = lineage.to_a_idx
     end
-
-    @response = search_results["result"]
   end
 end
diff --git a/app/helpers/suffix_array_helper.rb b/app/helpers/suffix_array_helper.rb
index 002f618..29406f3 100644
--- a/app/helpers/suffix_array_helper.rb
+++ b/app/helpers/suffix_array_helper.rb
@@ -17,6 +17,6 @@ def search(peptides, equate_il)
     end
 
     # Parse the response from the suffix array search service
-    JSON.parse(response.body)
+    JSON.parse(response.body)["result"]
   end
 end