diff --git a/dist/index.js b/dist/index.js
index bbf4c73..bfa99a0 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -33640,7 +33640,7 @@ class Config {
     } else {
       createPR = JSON.parse(createPR);
     }
-    const random = Math.random().toString(36).substring(7);
+
     this.input = {
       prompt: core.getInput("prompt"),
       prerun: core.getInput("prerun"),
@@ -33649,16 +33649,10 @@ class Config {
       os: core.getInput("os") || "windows",
       version: core.getInput("version") || "latest",
       createPR,
-      prBase: createPR ? core.getInput("pr-base") || "main" : "",
-      prBranch: createPR
-        ? core.getInput("pr-branch") || `testdriver/test-${random}`
-        : "",
-      prTitle: createPR
-        ? core.getInput("pr-title") || `Testdriver-${random}`
-        : "",
-      prTestFilename: createPR
-        ? core.getInput("pr-test-filename") || `testdriver-${random}.yml`
-        : "",
+      prBase: createPR ? core.getInput("pr-base") : "",
+      prBranch: createPR ? core.getInput("pr-branch") : "",
+      prTitle: createPR ? core.getInput("pr-title") : "",
+      prTestFilename: createPR ? core.getInput("pr-test-filename") : "",
     };
 
     // the values of github.context.repo.owner and github.context.repo.repo are taken from
@@ -40033,10 +40027,11 @@ const waitFor = (ms) => new Promise((r) => setTimeout(r, ms));
   console.log(chalk.yellow("os:"), os);
   console.log(chalk.yellow("createPR:"), createPR);
   if (createPR) {
-    console.log(chalk.yellow("prBranch:"), prBranch);
-    console.log(chalk.yellow("prBase:"), prBase);
-    console.log(chalk.yellow("prTitle:"), prTitle);
-    console.log(chalk.yellow("prTestFilename:"), prTestFilename);
+    if (prBranch) console.log(chalk.yellow("prBranch:"), prBranch);
+    if (prBase) console.log(chalk.yellow("prBase:"), prBase);
+    if (prTitle) console.log(chalk.yellow("prTitle:"), prTitle);
+    if (prTestFilename)
+      console.log(chalk.yellow("prTestFilename:"), prTestFilename);
   }
   console.log(chalk.yellow("prompt:"));
   console.log(prompt.replace(/\\n/g, "\n").replace(/\\r\\n/g, "\r\n"));
diff --git a/src/config.js b/src/config.js
index 48b318d..50aee82 100644
--- a/src/config.js
+++ b/src/config.js
@@ -9,7 +9,7 @@ class Config {
     } else {
       createPR = JSON.parse(createPR);
     }
-    const random = Math.random().toString(36).substring(7);
+
     this.input = {
       prompt: core.getInput("prompt"),
       prerun: core.getInput("prerun"),
@@ -18,16 +18,10 @@ class Config {
       os: core.getInput("os") || "windows",
       version: core.getInput("version") || "latest",
       createPR,
-      prBase: createPR ? core.getInput("pr-base") || "main" : "",
-      prBranch: createPR
-        ? core.getInput("pr-branch") || `testdriver/test-${random}`
-        : "",
-      prTitle: createPR
-        ? core.getInput("pr-title") || `Testdriver-${random}`
-        : "",
-      prTestFilename: createPR
-        ? core.getInput("pr-test-filename") || `testdriver-${random}.yml`
-        : "",
+      prBase: createPR ? core.getInput("pr-base") : "",
+      prBranch: createPR ? core.getInput("pr-branch") : "",
+      prTitle: createPR ? core.getInput("pr-title") : "",
+      prTestFilename: createPR ? core.getInput("pr-test-filename") : "",
     };
 
     // the values of github.context.repo.owner and github.context.repo.repo are taken from
diff --git a/src/index.js b/src/index.js
index 369dbe3..1f01791 100644
--- a/src/index.js
+++ b/src/index.js
@@ -57,10 +57,11 @@ const waitFor = (ms) => new Promise((r) => setTimeout(r, ms));
   console.log(chalk.yellow("os:"), os);
   console.log(chalk.yellow("createPR:"), createPR);
   if (createPR) {
-    console.log(chalk.yellow("prBranch:"), prBranch);
-    console.log(chalk.yellow("prBase:"), prBase);
-    console.log(chalk.yellow("prTitle:"), prTitle);
-    console.log(chalk.yellow("prTestFilename:"), prTestFilename);
+    if (prBranch) console.log(chalk.yellow("prBranch:"), prBranch);
+    if (prBase) console.log(chalk.yellow("prBase:"), prBase);
+    if (prTitle) console.log(chalk.yellow("prTitle:"), prTitle);
+    if (prTestFilename)
+      console.log(chalk.yellow("prTestFilename:"), prTestFilename);
   }
   console.log(chalk.yellow("prompt:"));
   console.log(prompt.replace(/\\n/g, "\n").replace(/\\r\\n/g, "\r\n"));