diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 62fec28d2d54ff1e3043325a0f7f774663490500..b1f77bf242cc8e17a484f07f44003ed79b762bce 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -276,7 +276,7 @@ module Ci
 
     def update_coverage
       coverage = extract_coverage(trace, coverage_regex)
-      update_attributes(coverage: coverage) if coverage.is_a?(Numeric)
+      update_attributes(coverage: coverage) if coverage.present?
     end
 
     def extract_coverage(text, regex)
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 493bc2db21af108def3c04b6bb3fbac414a990e8..95b230e4f5ca9480395fad208ebc9220b4ced5fc 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -222,6 +222,7 @@ CommitStatus:
 - queued_at
 - token
 - lock_version
+- coverage_regex
 Ci::Variable:
 - id
 - project_id