diff --git a/src/r/r.test.ts b/src/r/r.test.ts
index e7396278..c5a76cda 100644
--- a/src/r/r.test.ts
+++ b/src/r/r.test.ts
@@ -101,6 +101,21 @@ testTokenization('r', [
 			]
 		}
 	],
+	[
+		{
+			line: " #'",
+			tokens: [
+				{ startIndex: 0, type: 'white.r' },
+				{ startIndex: 1, type: 'comment.doc.r' }
+			]			
+		},
+		{
+			line: " ",
+			tokens: [
+				{ startIndex: 0, type: 'white.r' },
+			]
+		}
+	],
 
 	// Strings
 	[
diff --git a/src/r/r.ts b/src/r/r.ts
index 388a46f7..8ea23731 100644
--- a/src/r/r.ts
+++ b/src/r/r.ts
@@ -163,7 +163,7 @@ export const language = <languages.IMonarchLanguage>{
 			[/[{}\[\]()]/, '@brackets'],
 
 			{ include: '@operators' },
-
+			[/#'$/, 'comment.doc'],
 			[/#'/, 'comment.doc', '@roxygen'],
 			[/(^#.*$)/, 'comment'],