diff --git a/tests/lib/devicetree/api/src/main.c b/tests/lib/devicetree/api/src/main.c
index 636989f14f9..826af278076 100644
--- a/tests/lib/devicetree/api/src/main.c
+++ b/tests/lib/devicetree/api/src/main.c
@@ -1773,6 +1773,15 @@ ZTEST(devicetree_api, test_parent)
 				  TEST_SPI_BUS_0), "");
 }
 
+#undef DT_DRV_COMPAT
+#define DT_DRV_COMPAT vnd_i2c_mux_controller
+ZTEST(devicetree_api, test_gparent)
+{
+	zassert_true(DT_SAME_NODE(DT_GPARENT(TEST_I2C_MUX_CTLR_1), TEST_I2C), "");
+	zassert_true(DT_SAME_NODE(DT_INST_GPARENT(0), TEST_I2C), "");
+	zassert_true(DT_SAME_NODE(DT_INST_GPARENT(1), TEST_I2C), "");
+}
+
 #undef DT_DRV_COMPAT
 #define DT_DRV_COMPAT vnd_child_bindings
 ZTEST(devicetree_api, test_children)