diff --git a/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/CxxAstUtils.java b/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/CxxAstUtils.java
index 6bb0baf6241..01284e76398 100644
--- a/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/CxxAstUtils.java
+++ b/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/CxxAstUtils.java
@@ -116,6 +116,8 @@ public final class CxxAstUtils {
 	public static boolean isInMacro(IASTNode node) {
 		IASTNodeSelector nodeSelector = node.getTranslationUnit().getNodeSelector(node.getTranslationUnit().getFilePath());
 		IASTFileLocation fileLocation = node.getFileLocation();
+		if (fileLocation == null)
+			return true;
 		IASTPreprocessorMacroExpansion macro = nodeSelector.findEnclosingMacroExpansion(fileLocation.getNodeOffset(),
 				fileLocation.getNodeLength());
 		return macro != null;