diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index 18a7a35..a07a588 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -775,7 +775,7 @@
         node = self._node
         while node.parent:
             node = node.parent
-            if node.name == 'binman':
+            if node.name in ('binman', '/'):
                 break
             name = '%s.%s' % (node.name, name)
         return name
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 4ce181a..94c4389 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -5523,5 +5523,36 @@
         with self.assertRaises(ValueError) as e:
             data = self._DoReadFile('231_pre_load_invalid_key.dts')
 
+    def _CheckSafeUniqueNames(self, *images):
+        """Check all entries of given images for unsafe unique names"""
+        for image in images:
+            entries = {}
+            image._CollectEntries(entries, {}, image)
+            for entry in entries.values():
+                uniq = entry.GetUniqueName()
+
+                # Used as part of a filename, so must not be absolute paths.
+                self.assertFalse(os.path.isabs(uniq))
+
+    def testSafeUniqueNames(self):
+        """Test entry unique names are safe in single image configuration"""
+        data = self._DoReadFileRealDtb('230_unique_names.dts')
+
+        orig_image = control.images['image']
+        image_fname = tools.get_output_filename('image.bin')
+        image = Image.FromFile(image_fname)
+
+        self._CheckSafeUniqueNames(orig_image, image)
+
+    def testSafeUniqueNamesMulti(self):
+        """Test entry unique names are safe with multiple images"""
+        data = self._DoReadFileRealDtb('231_unique_names_multi.dts')
+
+        orig_image = control.images['image']
+        image_fname = tools.get_output_filename('image.bin')
+        image = Image.FromFile(image_fname)
+
+        self._CheckSafeUniqueNames(orig_image, image)
+
 if __name__ == "__main__":
     unittest.main()
diff --git a/tools/binman/test/230_unique_names.dts b/tools/binman/test/230_unique_names.dts
new file mode 100644
index 0000000..6780d37
--- /dev/null
+++ b/tools/binman/test/230_unique_names.dts
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		size = <0xc00>;
+		allow-repack;
+
+		u-boot {
+		};
+
+		fdtmap {
+		};
+
+		u-boot2 {
+			type = "u-boot";
+		};
+
+		text {
+			text = "some text";
+		};
+
+		u-boot-dtb {
+		};
+
+		image-header {
+			location = "end";
+		};
+	};
+};
diff --git a/tools/binman/test/231_unique_names_multi.dts b/tools/binman/test/231_unique_names_multi.dts
new file mode 100644
index 0000000..db63afb
--- /dev/null
+++ b/tools/binman/test/231_unique_names_multi.dts
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		multiple-images;
+
+		image {
+			size = <0xc00>;
+			allow-repack;
+
+			u-boot {
+			};
+
+			fdtmap {
+			};
+
+			u-boot2 {
+				type = "u-boot";
+			};
+
+			text {
+				text = "some text";
+			};
+
+			u-boot-dtb {
+			};
+
+			image-header {
+				location = "end";
+			};
+		};
+	};
+};