diff --git a/commondata/CEPC_Zdata.yaml b/commondata/CEPC_Zdata.yaml
index b14d111c..e72aa4a5 100644
--- a/commondata/CEPC_Zdata.yaml
+++ b/commondata/CEPC_Zdata.yaml
@@ -1,6 +1,6 @@
 dataset_name: CEPC_Zdata
 units: pb,GeV
-description: EWPOs
+description: The order corresponds to the observables GammaZ, SigmaHad, Re, Rmu, Rtau, Ae, Amu, Atau, Rb, Rc, Ab, Ac
 luminosity: 100000
 num_data: 12
 num_sys: 12
diff --git a/commondata/FCCee_Zdata.yaml b/commondata/FCCee_Zdata.yaml
index e6d61789..f69dc1f0 100644
--- a/commondata/FCCee_Zdata.yaml
+++ b/commondata/FCCee_Zdata.yaml
@@ -1,6 +1,6 @@
 dataset_name: FCCee_EWPOs
 units: pb/GeV
-description: EWPOs
+description: The order corresponds to the observables GammaZ, SigmaHad, Re, Rmu, Rtau, Ae, Amu, Atau, Rb, Rc, Ab, Ac
 luminosity: 300000
 num_data: 12
 num_sys: 12