diff --git a/src/vs/editor/browser/viewParts/currentLineHighlight/currentLineHighlight.ts b/src/vs/editor/browser/viewParts/currentLineHighlight/currentLineHighlight.ts
index 63dd36dee5cd2d168aa35afdc8822479c0c1deaf..37a6a18d242e18221819529dad8ef65862e813d9 100644
--- a/src/vs/editor/browser/viewParts/currentLineHighlight/currentLineHighlight.ts
+++ b/src/vs/editor/browser/viewParts/currentLineHighlight/currentLineHighlight.ts
@@ -139,5 +139,8 @@ registerThemingParticipant((theme, collector) => {
 		if (lineHighlightBorder) {
 			collector.addRule(`.monaco-editor.${theme.selector} .view-overlays .current-line { border: 2px solid ${lineHighlightBorder}; }`);
 		}
+		if (theme.type === 'hc') {
+			collector.addRule(`.monaco-editor.${theme.selector} .view-overlays .current-line { border-width: 1px; }`);
+		}
 	}
 });
diff --git a/src/vs/editor/browser/viewParts/currentLineMarginHighlight/currentLineMarginHighlight.ts b/src/vs/editor/browser/viewParts/currentLineMarginHighlight/currentLineMarginHighlight.ts
index cc27cb0879c856d5c412e6594d4392829ad1a4ef..9d00b84bc2ab39197e55532b0ff2083a2cf5933c 100644
--- a/src/vs/editor/browser/viewParts/currentLineMarginHighlight/currentLineMarginHighlight.ts
+++ b/src/vs/editor/browser/viewParts/currentLineMarginHighlight/currentLineMarginHighlight.ts
@@ -115,5 +115,8 @@ registerThemingParticipant((theme, collector) => {
 		if (lineHighlightBorder) {
 			collector.addRule(`.monaco-editor.${theme.selector} .margin-view-overlays .current-line-margin { border: 2px solid ${lineHighlightBorder}; }`);
 		}
+		if (theme.type === 'hc') {
+			collector.addRule(`.monaco-editor.${theme.selector} .margin-view-overlays .current-line-margin { border-width: 1px; }`);
+		}
 	}
 });