diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
index e7c1c2b670f..98a18631337 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
@@ -12552,6 +12552,12 @@ public class AST2CPPTests extends AST2CPPTestBase {
 		parseAndCheckBindings(getAboveComment(), CPP, true /* use GNU extensions */);
 	}
 	
+	//	void foo([[maybe_unused]] int a);
+	public void testCxx11AttributeBeforeParameterDeclaration_530729() throws Exception {
+		parseAndCheckBindings();
+	}
+
+	
 	//	struct CType {
 	//	    char m_Array[4];
 	//	};
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
index 4ff13c545f0..8dbe4c4a689 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
@@ -3062,6 +3062,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
 	protected ICPPASTParameterDeclaration parameterDeclaration() throws BacktrackException, EndOfFileException {
 		final int startOffset= LA(1).getOffset();
 
+		List<IASTAttributeSpecifier> attributes = attributeSpecifierSeq();
+		
 		if (LT(1) == IToken.tLBRACKET && supportParameterInfoBlock) {
 			skipBrackets(IToken.tLBRACKET, IToken.tRBRACKET, 0);
 		}
@@ -3076,6 +3078,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
 			declSpec= lie.fDeclSpec;
 			declarator= addInitializer(lie, DeclarationOptions.PARAMETER);
 		}
+		
+		addAttributeSpecifiers(attributes, (ICPPASTDeclSpecifier) declSpec);
 
 		final ICPPASTParameterDeclaration parm = getNodeFactory().newParameterDeclaration(declSpec, declarator);
 		final int endOffset = figureEndOffset(declSpec, declarator);