diff --git a/codan/org.eclipse.cdt.codan.checkers/src/org/eclipse/cdt/codan/internal/checkers/UnusedSymbolInFileScopeChecker.java b/codan/org.eclipse.cdt.codan.checkers/src/org/eclipse/cdt/codan/internal/checkers/UnusedSymbolInFileScopeChecker.java
index 1a32fb61fd7..69b8f5f3e2e 100644
--- a/codan/org.eclipse.cdt.codan.checkers/src/org/eclipse/cdt/codan/internal/checkers/UnusedSymbolInFileScopeChecker.java
+++ b/codan/org.eclipse.cdt.codan.checkers/src/org/eclipse/cdt/codan/internal/checkers/UnusedSymbolInFileScopeChecker.java
@@ -57,6 +57,7 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPDeferredFunction;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPMethod;
+import org.eclipse.cdt.core.parser.StandardAttributes;
 import org.eclipse.cdt.core.parser.util.AttributeUtil;
 
 /**
@@ -72,7 +73,7 @@ public class UnusedSymbolInFileScopeChecker extends AbstractIndexAstChecker {
 	 * Various attributes that when present for a symbol should make it considered as used.
 	 */
 	private static final String[] USAGE_ATTRIBUTES = new String[] { "__unused__", "unused", "constructor", //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
-			"destructor" }; //$NON-NLS-1$
+			"destructor", StandardAttributes.MAYBE_UNUSED }; //$NON-NLS-1$
 
 	private Map<IBinding, IASTDeclarator> externFunctionDeclarations = new HashMap<>();
 	private Map<IBinding, IASTDeclarator> staticFunctionDeclarations = new HashMap<>();
@@ -145,7 +146,7 @@ public class UnusedSymbolInFileScopeChecker extends AbstractIndexAstChecker {
 						IASTSimpleDeclaration simpleDeclaration = (IASTSimpleDeclaration) element;
 
 						IASTDeclSpecifier declSpec = simpleDeclaration.getDeclSpecifier();
-						boolean hasUsageAttrib = hasUsageAttribute(declSpec);
+						boolean hasUsageAttrib = hasUsageAttribute(declSpec) || hasUsageAttribute(simpleDeclaration);
 						IASTDeclarator[] declarators = simpleDeclaration.getDeclarators();
 						for (IASTDeclarator decl : declarators) {
 							IASTName astName = decl.getName();
diff --git a/codan/org.eclipse.cdt.codan.core.tests/src/org/eclipse/cdt/codan/core/internal/checkers/UnusedSymbolInFileScopeCheckerTest.java b/codan/org.eclipse.cdt.codan.core.tests/src/org/eclipse/cdt/codan/core/internal/checkers/UnusedSymbolInFileScopeCheckerTest.java
index 9da91a4b5ae..184d80048ef 100644
--- a/codan/org.eclipse.cdt.codan.core.tests/src/org/eclipse/cdt/codan/core/internal/checkers/UnusedSymbolInFileScopeCheckerTest.java
+++ b/codan/org.eclipse.cdt.codan.core.tests/src/org/eclipse/cdt/codan/core/internal/checkers/UnusedSymbolInFileScopeCheckerTest.java
@@ -384,4 +384,12 @@ public class UnusedSymbolInFileScopeCheckerTest extends CheckerTestCase {
 		loadCodeAndRunCpp(getAboveComment());
 		checkNoErrors();
 	}
+
+	// [[maybe_unused]] static int v1;
+	// [[maybe_unused]] int f1();
+	// [[maybe_unused]] extern int f2();
+	public void testAttributeCpp17Unused() throws Exception {
+		loadCodeAndRunCpp(getAboveComment());
+		checkNoErrors();
+	}
 }