diff --git a/lib/overcommit/hook/pre_commit/stylelint.rb b/lib/overcommit/hook/pre_commit/stylelint.rb
index a063233a..403c5e27 100644
--- a/lib/overcommit/hook/pre_commit/stylelint.rb
+++ b/lib/overcommit/hook/pre_commit/stylelint.rb
@@ -8,7 +8,7 @@ class Stylelint < Base
     # example of output:
     # index.css: line 4, col 4, error - Expected indentation of 2 spaces (indentation)
 
-    MESSAGE_REGEX = /^(?<file>.+):\D*(?<line>\d).*$/
+    MESSAGE_REGEX = /^(?<file>.+):\D*(?<line>\d+).*$/
 
     def run
       result = execute(command, args: applicable_files)
diff --git a/spec/overcommit/hook/pre_commit/stylelint_spec.rb b/spec/overcommit/hook/pre_commit/stylelint_spec.rb
index 3f619a25..d31ba948 100644
--- a/spec/overcommit/hook/pre_commit/stylelint_spec.rb
+++ b/spec/overcommit/hook/pre_commit/stylelint_spec.rb
@@ -39,6 +39,10 @@
       end
 
       it { should fail_hook }
+
+      it 'extracts lines numbers correctly from output' do
+        expect(subject.run.map(&:line)).to eq([4, 10])
+      end
     end
   end
 end