diff --git a/GS_NFV-SOL_026.md b/GS_NFV-SOL_026.md
index 088ea5042c545424a9c9554ab5e4b91a778c6666..5f586d60e85d7a0033de17caaf473dc71a37cd7e 100644
--- a/GS_NFV-SOL_026.md
+++ b/GS_NFV-SOL_026.md
@@ -57,7 +57,7 @@ Referenced documents which are not found to be publicly available in the expecte
 
 The following referenced documents are necessary for the application of the present document.
 
-- <a name="_ref_1">[1]</a>    ETSI GS NFV-IFA 053: "Network Functions Virtualisation (NFV) Release 5; Management and Orchestration; Requirements and interface specification for Physical Infrastructure Management".
+- <span id="_ref_1"></span><a name="_ref_1">[1]</a>    ETSI GS NFV-IFA 053: "Network Functions Virtualisation (NFV) Release 5; Management and Orchestration; Requirements and interface specification for Physical Infrastructure Management".
 - <a name="_ref_2">[2]</a>    [DMTF&reg; DSP0266](DMTF&reg; DSP0266): "Redfish Specification", v1.22.0.
 - <a name="_ref_3">[3]</a>     [DMTF&reg; DSP0268](DMTF&reg; DSP0268): "Redfish Data Model Specification", v2025.1.