diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab28ab5..7aaf7e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 
 ### Fixed
 
+* Support multiple extra args with spaces, e.g. `versa test --testdox --filter foo`.
 * Prevent timeout errors with `versa run`.
 
 ## 0.2.0
diff --git a/src/Console/Command/BuildCommand.php b/src/Console/Command/BuildCommand.php
index 04363d7..a359a64 100644
--- a/src/Console/Command/BuildCommand.php
+++ b/src/Console/Command/BuildCommand.php
@@ -62,7 +62,7 @@ final class BuildCommand extends AbstractCommand
                         if ($isDockerCompose) {
                             $process = Process::create(
                                 command: ['docker', 'compose', 'build'],
-                                extraArgs: $extraArgs,
+                                extraArgs: explode(separator: ' ', string: $extraArgs),
                                 workingDir: $workingDir,
                             );
 
@@ -77,7 +77,7 @@ final class BuildCommand extends AbstractCommand
                     case ProjectType::Sculpin->value:
                         $process = Process::create(
                             command: ['./vendor/bin/sculpin', 'generate'],
-                            extraArgs: $extraArgs,
+                            extraArgs: explode(separator: ' ', string: $extraArgs),
                             workingDir: $workingDir,
                         );
 
@@ -90,7 +90,7 @@ final class BuildCommand extends AbstractCommand
                     case ProjectType::Fractal->value:
                         $process = Process::create(
                             command: ['npx', 'fractal', 'build'],
-                            extraArgs: $extraArgs,
+                            extraArgs: explode(separator: ' ', string: $extraArgs),
                             workingDir: $workingDir,
                         );
 
diff --git a/src/Console/Command/InstallCommand.php b/src/Console/Command/InstallCommand.php
index 5f5e923..f7fed18 100644
--- a/src/Console/Command/InstallCommand.php
+++ b/src/Console/Command/InstallCommand.php
@@ -30,7 +30,7 @@ final class InstallCommand extends AbstractCommand
                 language: $this->getProjectLanguage($filesystem, $workingDir, $input),
                 workingDir: $workingDir,
             ),
-            extraArgs: $extraArgs,
+            extraArgs: explode(separator: ' ', string: $extraArgs),
             workingDir: $workingDir,
         );
 
diff --git a/src/Console/Command/TestCommand.php b/src/Console/Command/TestCommand.php
index 0809cb9..1485db2 100644
--- a/src/Console/Command/TestCommand.php
+++ b/src/Console/Command/TestCommand.php
@@ -32,7 +32,7 @@ final class TestCommand extends AbstractCommand
         // TODO: commands in Docker Compose?
         $process = Process::create(
             command: $command,
-            extraArgs: $extraArgs,
+            extraArgs: explode(separator: ' ', string: $extraArgs),
             workingDir: $workingDir,
         );
 
diff --git a/src/Process/Process.php b/src/Process/Process.php
index e95bbd1..fe5f87d 100644
--- a/src/Process/Process.php
+++ b/src/Process/Process.php
@@ -14,11 +14,11 @@ final class Process
     /**
      * @param non-empty-array<int, non-empty-string> $command
      * @param string $workingDir
-     * @param ?string $extraArgs
+     * @param non-empty-string[] $extraArgs
      */
-    public static function create(array $command, string $workingDir, ?string $extraArgs = null): SymfonyProcess
+    public static function create(array $command, string $workingDir, array $extraArgs = []): SymfonyProcess
     {
-        $process = new SymfonyProcess(command: array_filter([...$command, $extraArgs]));
+        $process = new SymfonyProcess(command: array_filter([...$command, ...$extraArgs]));
         $process->setTty(true);
         $process->setWorkingDirectory($workingDir);