diff --git a/js/.jscsrc b/js/.jscsrc
index 982676e15f..caf1938f21 100644
--- a/js/.jscsrc
+++ b/js/.jscsrc
@@ -8,6 +8,7 @@
   "disallowSpaceAfterPrefixUnaryOperators": ["++", "--", "+", "-", "~", "!"],
   "disallowSpaceBeforeBinaryOperators": [","],
   "disallowSpaceBeforePostfixUnaryOperators": ["++", "--"],
+  "disallowSpacesInFunctionDeclaration": { "beforeOpeningRoundBrace": true },
   "disallowSpacesInNamedFunctionExpression": { "beforeOpeningRoundBrace": true },
   "disallowSpacesInsideArrayBrackets": true,
   "disallowSpacesInsideParentheses": true,