diff --git a/src/basic-languages/elixir/elixir.test.ts b/src/basic-languages/elixir/elixir.test.ts
index bd60257e..fe68c922 100644
--- a/src/basic-languages/elixir/elixir.test.ts
+++ b/src/basic-languages/elixir/elixir.test.ts
@@ -383,5 +383,32 @@ testTokenization('elixir', [
 				{ startIndex: 15, type: 'delimiter.square.elixir' }
 			]
 		}
+	],
+	// Bitstrings
+	[
+		{
+			line: '<<height::32-integer, width::32-integer, data::binary>>',
+			tokens: [
+				{ startIndex: 0, type: 'delimiter.angle.special.elixir' },
+				{ startIndex: 2, type: 'identifier.elixir' },
+				{ startIndex: 8, type: 'operator.elixir' },
+				{ startIndex: 10, type: 'number.elixir' },
+				{ startIndex: 12, type: 'operator.elixir' },
+				{ startIndex: 13, type: 'identifier.elixir' },
+				{ startIndex: 20, type: 'punctuation.elixir' },
+				{ startIndex: 21, type: 'white.elixir' },
+				{ startIndex: 22, type: 'identifier.elixir' },
+				{ startIndex: 27, type: 'operator.elixir' },
+				{ startIndex: 29, type: 'number.elixir' },
+				{ startIndex: 31, type: 'operator.elixir' },
+				{ startIndex: 32, type: 'identifier.elixir' },
+				{ startIndex: 39, type: 'punctuation.elixir' },
+				{ startIndex: 40, type: 'white.elixir' },
+				{ startIndex: 41, type: 'identifier.elixir' },
+				{ startIndex: 45, type: 'operator.elixir' },
+				{ startIndex: 47, type: 'identifier.elixir' },
+				{ startIndex: 53, type: 'delimiter.angle.special.elixir' }
+			]
+		}
 	]
 ]);
diff --git a/src/basic-languages/elixir/elixir.ts b/src/basic-languages/elixir/elixir.ts
index ad974a20..210ac6bc 100644
--- a/src/basic-languages/elixir/elixir.ts
+++ b/src/basic-languages/elixir/elixir.ts
@@ -167,7 +167,7 @@ export const language = <languages.IMonarchLanguage>{
 		// Keyword list shorthand
 
 		keywordsShorthand: [
-			[/(@atomName)(:)/, ['constant', 'constant.punctuation']],
+			[/(@atomName)(:)(\s+)/, ['constant', 'constant.punctuation', 'white']],
 			// Use positive look-ahead to ensure the string is followed by :
 			// and should be considered a keyword.
 			[