diff --git a/src/diagrams/requirement/styles.js b/src/diagrams/requirement/styles.js
index 52423f4a8..14c354d55 100644
--- a/src/diagrams/requirement/styles.js
+++ b/src/diagrams/requirement/styles.js
@@ -19,6 +19,7 @@ const getStyles = options => `
     fill-opacity: 100%;
     stroke: ${options.requirementBorderColor};
     stroke-size: ${options.requirementBorderSize};
+    stroke-width: ${options.requirementBorderSize};
   }
   .reqLabelBox {
     fill: ${options.relationLabelBackground};