diff --git a/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareDropConstraint.java b/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareDropConstraint.java
index 17a2303..663f880 100644
--- a/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareDropConstraint.java
+++ b/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareDropConstraint.java
@@ -12,8 +12,10 @@
 import javax.jcr.nodetype.NodeDefinition;
 import javax.jcr.nodetype.NodeType;
 import java.lang.invoke.MethodHandles;
+import java.util.Arrays;
 import java.util.Objects;
 import java.util.Optional;
+import java.util.stream.Stream;
 
 public class NodeTypeConstraintAwareDropConstraint extends AlwaysTrueDropConstraint implements DropConstraint {
 	private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
@@ -49,7 +51,7 @@ public boolean allowedToMove(final com.vaadin.v7.data.Item sourceItem) {
 	protected boolean allowedAsChild(final Node src, final Node dst) {
 		try {
 			if(Objects.equals(src.getSession().getWorkspace().getName(), dst.getSession().getWorkspace().getName())) {
-				for (NodeDefinition allowedChildNodeDefinition : dst.getPrimaryNodeType().getChildNodeDefinitions()) {
+				for (NodeDefinition allowedChildNodeDefinition : getChildNodeDefinitions(dst)) {
 					for (NodeType allowedChildRequiredPrimaryType : allowedChildNodeDefinition.getRequiredPrimaryTypes()) {
 						if (Objects.equals(src.getPrimaryNodeType(), allowedChildRequiredPrimaryType)) {
 							return true;
@@ -63,6 +65,13 @@ protected boolean allowedAsChild(final Node src, final Node dst) {
 		return false;
 	}
 
+	private NodeDefinition[] getChildNodeDefinitions(final Node node) throws RepositoryException {
+		return Stream.concat(
+				Stream.of(node.getPrimaryNodeType()),
+				Arrays.stream(node.getMixinNodeTypes())
+		).map(NodeType::getChildNodeDefinitions).flatMap(Arrays::stream).toArray(NodeDefinition[]::new);
+	}
+
 	private Optional<Node> getParent(final Node node) {
 		try {
 			return Optional.ofNullable(node.getParent());
diff --git a/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareJcrContentClipboard.java b/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareJcrContentClipboard.java
index 42fa3a7..b3c0e36 100644
--- a/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareJcrContentClipboard.java
+++ b/src/main/java/com/namics/oss/magnolia/appbuilder/ui5/dropconstraint/NodeTypeConstraintAwareJcrContentClipboard.java
@@ -15,7 +15,9 @@
 import javax.jcr.nodetype.NodeDefinition;
 import javax.jcr.nodetype.NodeType;
 import java.lang.invoke.MethodHandles;
+import java.util.Arrays;
 import java.util.Objects;
+import java.util.stream.Stream;
 
 @SubAppScoped
 public class NodeTypeConstraintAwareJcrContentClipboard extends JcrContentClipboard {
@@ -46,7 +48,7 @@ protected boolean canPasteInto(final Property source, final Node destination) th
 	}
 
 	protected boolean canPasteInto(final Node source, final Node destination) throws RepositoryException {
-		for (NodeDefinition allowedChildNodeDefinition : destination.getPrimaryNodeType().getChildNodeDefinitions()) {
+		for (NodeDefinition allowedChildNodeDefinition : getChildNodeDefinitions(destination)) {
 			for (NodeType allowedChildRequiredPrimaryType : allowedChildNodeDefinition.getRequiredPrimaryTypes()) {
 				if (Objects.equals(source.getPrimaryNodeType(), allowedChildRequiredPrimaryType)) {
 					return true;
@@ -55,4 +57,11 @@ protected boolean canPasteInto(final Node source, final Node destination) throws
 		}
 		return false;
 	}
+
+	private NodeDefinition[] getChildNodeDefinitions(final Node node) throws RepositoryException {
+		return Stream.concat(
+				Stream.of(node.getPrimaryNodeType()),
+				Arrays.stream(node.getMixinNodeTypes())
+		).map(NodeType::getChildNodeDefinitions).flatMap(Arrays::stream).toArray(NodeDefinition[]::new);
+	}
 }