diff --git a/lib/index.cjs b/lib/index.cjs
index 1fe9ba5..fb05cde 100644
--- a/lib/index.cjs
+++ b/lib/index.cjs
@@ -235,7 +235,7 @@ function markedVariables() {
 				const codeBlockSkip  = /^(?: {4}[^\n]+(?:\n(?: *(?:\n|$))*)?)+|^ {0,3}(`{3,}(?=[^`\n]*(?:\n|$))|~{3,})(?:[^\n]*)(?:\n|$)(?:|(?:[\s\S]*?)(?:\n|$))(?: {0,3}\2[~`]* *(?=\n|$))|`[^`]*?`/;
 				const varLabelRegex  = /([!$]?)\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]/; // Matches [var] or ![var] or $[var], 3[4]
 				const blockDefRegex  = /:((?:\n? *[^\s].*)+)(?=\n+|$)/;            // Matches : block definitions,       3[4]: 5
-				const inlineDefRegex = /\(([^\n]+)\)/;                             // Matches (inline definitions),      3[4](6)
+				const inlineDefRegex = /\(([^\n]*)\)/;                             // Matches (inline definitions),      3[4](6)
 
 				const combinedRegex = new RegExp(`(${codeBlockSkip.source})|${varLabelRegex.source}(?:${blockDefRegex.source}|${inlineDefRegex.source})?`, 'gm');
 
diff --git a/lib/index.umd.js b/lib/index.umd.js
index c7fa33c..22f529c 100644
--- a/lib/index.umd.js
+++ b/lib/index.umd.js
@@ -235,7 +235,7 @@
 					const codeBlockSkip  = /^(?: {4}[^\n]+(?:\n(?: *(?:\n|$))*)?)+|^ {0,3}(`{3,}(?=[^`\n]*(?:\n|$))|~{3,})(?:[^\n]*)(?:\n|$)(?:|(?:[\s\S]*?)(?:\n|$))(?: {0,3}\2[~`]* *(?=\n|$))|`[^`]*?`/;
 					const varLabelRegex  = /([!$]?)\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]/; // Matches [var] or ![var] or $[var], 3[4]
 					const blockDefRegex  = /:((?:\n? *[^\s].*)+)(?=\n+|$)/;            // Matches : block definitions,       3[4]: 5
-					const inlineDefRegex = /\(([^\n]+)\)/;                             // Matches (inline definitions),      3[4](6)
+					const inlineDefRegex = /\(([^\n]*)\)/;                             // Matches (inline definitions),      3[4](6)
 
 					const combinedRegex = new RegExp(`(${codeBlockSkip.source})|${varLabelRegex.source}(?:${blockDefRegex.source}|${inlineDefRegex.source})?`, 'gm');
 
diff --git a/src/index.js b/src/index.js
index 95ce6b7..3a43cba 100644
--- a/src/index.js
+++ b/src/index.js
@@ -233,7 +233,7 @@ export function markedVariables() {
 				const codeBlockSkip  = /^(?: {4}[^\n]+(?:\n(?: *(?:\n|$))*)?)+|^ {0,3}(`{3,}(?=[^`\n]*(?:\n|$))|~{3,})(?:[^\n]*)(?:\n|$)(?:|(?:[\s\S]*?)(?:\n|$))(?: {0,3}\2[~`]* *(?=\n|$))|`[^`]*?`/;
 				const varLabelRegex  = /([!$]?)\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]/; // Matches [var] or ![var] or $[var], 3[4]
 				const blockDefRegex  = /:((?:\n? *[^\s].*)+)(?=\n+|$)/;            // Matches : block definitions,       3[4]: 5
-				const inlineDefRegex = /\(([^\n]+)\)/;                             // Matches (inline definitions),      3[4](6)
+				const inlineDefRegex = /\(([^\n]*)\)/;                             // Matches (inline definitions),      3[4](6)
 
 				const combinedRegex = new RegExp(`(${codeBlockSkip.source})|${varLabelRegex.source}(?:${blockDefRegex.source}|${inlineDefRegex.source})?`, 'gm');