diff --git a/__tests__/install.test.ts b/__tests__/install.test.ts
index 5c272af2..45119282 100644
--- a/__tests__/install.test.ts
+++ b/__tests__/install.test.ts
@@ -20,6 +20,9 @@ jest.mock('../src/install', () => ({
       }
 
       let script = 'initial script ' + filename + version + os_version;
+      if (tools_csv) {
+        script += 'add_tool';
+      }
       if (extension_csv) {
         script += 'install extensions';
       }
@@ -29,9 +32,6 @@ jest.mock('../src/install', () => ({
       if (coverage_driver) {
         script += 'set coverage driver';
       }
-      if (tools_csv) {
-        script += 'add_tool';
-      }
 
       return script;
     }
diff --git a/dist/index.js b/dist/index.js
index 8d996a67..ffe43f67 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2042,6 +2042,7 @@ function build(filename, version, os_version) {
             tools_csv = 'pecl, ' + tools_csv;
         }
         let script = yield utils.readScript(filename, version, os_version);
+        script += yield tools.addTools(tools_csv, os_version);
         if (extension_csv) {
             script += yield extensions.addExtension(extension_csv, version, os_version);
         }
@@ -2051,7 +2052,6 @@ function build(filename, version, os_version) {
         if (coverage_driver) {
             script += yield coverage.addCoverage(coverage_driver, version, os_version);
         }
-        script += yield tools.addTools(tools_csv, os_version);
         return yield utils.writeScript(filename, script);
     });
 }
diff --git a/src/install.ts b/src/install.ts
index eccc25d7..cfaadf74 100644
--- a/src/install.ts
+++ b/src/install.ts
@@ -34,6 +34,8 @@ export async function build(
   }
 
   let script: string = await utils.readScript(filename, version, os_version);
+  script += await tools.addTools(tools_csv, os_version);
+
   if (extension_csv) {
     script += await extensions.addExtension(extension_csv, version, os_version);
   }
@@ -43,7 +45,6 @@ export async function build(
   if (coverage_driver) {
     script += await coverage.addCoverage(coverage_driver, version, os_version);
   }
-  script += await tools.addTools(tools_csv, os_version);
 
   return await utils.writeScript(filename, script);
 }