diff --git a/apps/canvas/front/src/lib/config.ts b/apps/canvas/front/src/lib/config.ts
index 3eed93e..22353f8 100644
--- a/apps/canvas/front/src/lib/config.ts
+++ b/apps/canvas/front/src/lib/config.ts
@@ -54,7 +54,7 @@
     ingress?: Ingress[];
     expose?: PortDomain[];
     volume?: string[];
-    preBuildCommands?: string[];
+    preBuildCommands?: { bin: string }[];
 };
 
 export type Volume = {
@@ -124,7 +124,7 @@
                         auth: { enabled: false },
                     })),
                     expose: findExpose(n),
-                    preBuildCommands: [n.data.preBuildCommands.split("\n").map((cmd) => ({ bin: cmd }))],
+                    preBuildCommands: n.data.preBuildCommands ? n.data.preBuildCommands.split("\n").map((cmd) => ({ bin: cmd })) : [],
                 };
             }),
             volume: nodes.filter((n) => n.type === "volume").map((n): Volume => ({
@@ -214,7 +214,7 @@
 export function CreateValidators(): Validator {
     return SortingValidator(
         CombineValidators(
-            EmptyValidator, 
+            EmptyValidator,
             GitRepositoryValidator,
             ServiceValidator,
             GatewayHTTPSValidator,
@@ -228,7 +228,7 @@
     if (nodes.length > 0) {
         return [];
     }
-    return [{   
+    return [{
         id: "no-nodes",
         type: "FATAL",
         message: "Start by importing application source code",
@@ -254,7 +254,7 @@
         message: "Connect to service",
         onHighlight: (store) => store.setHighlightCategory("Services", true),
         onLooseHighlight: (store) => store.setHighlightCategory("Services", false),
-} satisfies Message));
+    } satisfies Message));
     return noAddress.concat(noApp);
 }
 
@@ -269,8 +269,8 @@
         onLooseHighlight: (store) => store.updateNode(n.id, { selected: false }),
         onClick: (store) => {
             store.updateNode(n.id, { selected: true });
-            store.updateNodeData<"app">(n.id, { 
-                activeField: "name" ,
+            store.updateNodeData<"app">(n.id, {
+                activeField: "name",
             });
         },
     }));
@@ -291,8 +291,8 @@
         onLooseHighlight: (store) => store.updateNode(n.id, { selected: false }),
         onClick: (store) => {
             store.updateNode(n.id, { selected: true });
-            store.updateNodeData<"app">(n.id, { 
-                activeField: "type" ,
+            store.updateNodeData<"app">(n.id, {
+                activeField: "type",
             });
         },
     }));
@@ -324,7 +324,7 @@
             },
             onLooseHighlight: (store) => {
                 store.updateNode(n.id, { selected: false });
-                store.setHighlightCategory("gateways", false);    
+                store.setHighlightCategory("gateways", false);
             },
         }));
     });
@@ -339,7 +339,7 @@
             nodeId: n.id,
             message: `Can not expose same port using multiple ingresses: ${p.name} - ${p.value}`,
             onHighlight: (store) => store.updateNode(n.id, { selected: true }),
-            onLooseHighlight: (store) => store.updateNode(n.id, { selected: false }),        
+            onLooseHighlight: (store) => store.updateNode(n.id, { selected: false }),
         };
     })).filter((m) => m !== undefined);
     return noName.concat(noSource).concat(noRuntime).concat(noPorts).concat(noIngress).concat(multipleIngress);