diff --git a/libs/sdk-core/src/greenlight/node_api.rs b/libs/sdk-core/src/greenlight/node_api.rs
index 580a72199..66cbd5eb6 100644
--- a/libs/sdk-core/src/greenlight/node_api.rs
+++ b/libs/sdk-core/src/greenlight/node_api.rs
@@ -1461,7 +1461,7 @@ impl NodeAPI for Greenlight {
                     .list_peers(cln::ListpeersRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::ListPeerChannels => {
                 let resp = self
@@ -1470,7 +1470,7 @@ impl NodeAPI for Greenlight {
                     .list_peer_channels(cln::ListpeerchannelsRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::ListFunds => {
                 let resp = self
@@ -1479,7 +1479,7 @@ impl NodeAPI for Greenlight {
                     .list_funds(cln::ListfundsRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::ListPayments => {
                 let resp = self
@@ -1488,7 +1488,7 @@ impl NodeAPI for Greenlight {
                     .list_pays(cln::ListpaysRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::ListInvoices => {
                 let resp = self
@@ -1497,7 +1497,7 @@ impl NodeAPI for Greenlight {
                     .list_invoices(cln::ListinvoicesRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::CloseAllChannels => {
                 let peers_res = self
@@ -1519,11 +1519,11 @@ impl NodeAPI for Greenlight {
                     .getinfo(cln::GetinfoRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::GenerateDiagnosticData => {
                 let resp = self.generate_diagnostic_data().await?;
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
             NodeCommand::Stop => {
                 let resp = self
@@ -1532,7 +1532,7 @@ impl NodeAPI for Greenlight {
                     .stop(cln::StopRequest::default())
                     .await?
                     .into_inner();
-                Ok(format!("{resp:?}"))
+                Ok(serde_json::to_string_pretty(&resp)?)
             }
         }
     }