diff --git a/tests/nexus/test_5_1_10.cpp b/tests/nexus/test_5_1_10.cpp
index 072b74f7a..3678bbbee 100644
--- a/tests/nexus/test_5_1_10.cpp
+++ b/tests/nexus/test_5_1_10.cpp
@@ -165,7 +165,7 @@ void Test5_1_10(void)
      *     - Version TLV
      */
 
-    dut.Get<Mle::Mle>().SetRouterEligible(false);
+    SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(false));
     dut.Join(leader);
 
     /**
diff --git a/tests/nexus/test_5_1_11.cpp b/tests/nexus/test_5_1_11.cpp
index 3bb73e519..6e9086215 100644
--- a/tests/nexus/test_5_1_11.cpp
+++ b/tests/nexus/test_5_1_11.cpp
@@ -186,7 +186,7 @@ void Test5_1_11(void)
      *     - Scan Mask TLV = 0x80 (active Routers)
      *     - Version TLV
      */
-    dut.Get<Mle::Mle>().SetRouterEligible(false);
+    SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(false));
     dut.Join(leader);
 
     Log("---------------------------------------------------------------------------------------");
diff --git a/tests/nexus/test_5_1_8.cpp b/tests/nexus/test_5_1_8.cpp
index 0e878c934..d2e956632 100644
--- a/tests/nexus/test_5_1_8.cpp
+++ b/tests/nexus/test_5_1_8.cpp
@@ -176,7 +176,7 @@ void Test5_1_8(void)
      *     - Scan Mask TLV = 0x80 (Active Routers)
      *     - Version TLV
      */
-    dut.Get<Mle::Mle>().SetRouterEligible(false);
+    SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(false));
     dut.Join(router3, Node::kAsFed); // We use router3 as the dataset source, but it will scan and find all
 
     Log("---------------------------------------------------------------------------------------");
diff --git a/tests/nexus/test_5_1_9.cpp b/tests/nexus/test_5_1_9.cpp
index fa5df9f94..72f69ecb9 100644
--- a/tests/nexus/test_5_1_9.cpp
+++ b/tests/nexus/test_5_1_9.cpp
@@ -187,7 +187,7 @@ void Test5_1_9(void)
      *     - Version TLV
      */
     Log("Step 3: Router_2 (DUT) begins attach process");
-    dut.Get<Mle::Mle>().SetRouterEligible(false);
+    SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(false));
     dut.Join(reed1); // reed1 is just a placeholder here, it will scan.
 
     /**