diff --git a/ee/changelogs/unreleased/aling-dast-lf-with-other-parsers.yml b/ee/changelogs/unreleased/aling-dast-lf-with-other-parsers.yml
new file mode 100644
index 0000000000000000000000000000000000000000..64cbf5f1dbaa3cc6ff6eb2f13ee3c6513b7ac4bc
--- /dev/null
+++ b/ee/changelogs/unreleased/aling-dast-lf-with-other-parsers.yml
@@ -0,0 +1,5 @@
+---
+title: Improve DAST location fingerprints
+merge_request: 10487
+author:
+type: changed
diff --git a/ee/lib/gitlab/ci/parsers/security/dast.rb b/ee/lib/gitlab/ci/parsers/security/dast.rb
index 3d7e4dd27c45101b039ed67a602a13d059af105e..a71273e5f0ff635fa9b67285b84d73c10378b0a2 100644
--- a/ee/lib/gitlab/ci/parsers/security/dast.rb
+++ b/ee/lib/gitlab/ci/parsers/security/dast.rb
@@ -46,7 +46,7 @@ def flatten_vulnerabilities(vulnerability, host)
           end
 
           def generate_location_fingerprint(location)
-            Digest::SHA1.hexdigest("#{location['param']} #{location['method']} #{location['path']}")
+            Digest::SHA1.hexdigest("#{location['path']}:#{location['param']}:#{location['method']}")
           end
         end
       end
diff --git a/ee/spec/lib/gitlab/ci/parsers/security/dast_spec.rb b/ee/spec/lib/gitlab/ci/parsers/security/dast_spec.rb
index 0238ff28cb4da2eb4cfeb222eb84be41b238bf0f..319a0c861aaf6a450fcfa517d0ffa33e73e0455b 100644
--- a/ee/spec/lib/gitlab/ci/parsers/security/dast_spec.rb
+++ b/ee/spec/lib/gitlab/ci/parsers/security/dast_spec.rb
@@ -24,8 +24,8 @@
     end
 
     it 'generates expected location fingerprint' do
-      expected1 = Digest::SHA1.hexdigest('X-Content-Type-Options GET ')
-      expected2 = Digest::SHA1.hexdigest('X-Content-Type-Options GET /')
+      expected1 = Digest::SHA1.hexdigest(':X-Content-Type-Options:GET')
+      expected2 = Digest::SHA1.hexdigest('/:X-Content-Type-Options:GET')
 
       expect(report.occurrences.first[:location_fingerprint]).to eq(expected1)
       expect(report.occurrences.last[:location_fingerprint]).to eq(expected2)