diff --git a/backend/common/moduleconfig/config.go b/backend/common/moduleconfig/config.go
index 888b9ecf30..1b7b758696 100644
--- a/backend/common/moduleconfig/config.go
+++ b/backend/common/moduleconfig/config.go
@@ -14,6 +14,7 @@ type ModuleConfig struct {
 	Language string   `toml:"language"`
 	Module   string   `toml:"module"`
 	Deploy   []string `toml:"deploy"`
+	Schema   string   `toml:"schema"`
 }
 
 // LoadConfig from a directory.
diff --git a/cmd/ftl/cmd_deploy.go b/cmd/ftl/cmd_deploy.go
index cfdc3a9c29..6b36555ba3 100644
--- a/cmd/ftl/cmd_deploy.go
+++ b/cmd/ftl/cmd_deploy.go
@@ -54,7 +54,7 @@ func (d *deployCmd) Run(ctx context.Context, client ftlv1connect.ControllerServi
 		return errors.WithStack(err)
 	}
 
-	schema, err := findFiles(d.Base, []string{config.Module})
+	schema, err := findFiles(d.Base, []string{config.Schema})
 	if err != nil {
 		return errors.WithStack(err)
 	}
diff --git a/kotlin-runtime/ftl-generator/src/main/kotlin/xyz/block/ftl/generator/ModuleGenerator.kt b/kotlin-runtime/ftl-generator/src/main/kotlin/xyz/block/ftl/generator/ModuleGenerator.kt
index 8072e603b4..c86e8ff1e8 100644
--- a/kotlin-runtime/ftl-generator/src/main/kotlin/xyz/block/ftl/generator/ModuleGenerator.kt
+++ b/kotlin-runtime/ftl-generator/src/main/kotlin/xyz/block/ftl/generator/ModuleGenerator.kt
@@ -173,9 +173,10 @@ class ModuleGenerator() {
 
     Path.of(buildDir, "ftl.toml").writeText(
       """
-      module = "${module}"
+      module = "$module"
       language = "kotlin"
       deploy = ["main", "classes", "dependency", "classpath.txt"]
+      schema = "schema.pb"
       """.trimIndent()
     )
 
diff --git a/kotlin-runtime/ftl-runtime/src/main/kotlin/xyz/block/ftl/ksp/SchemaExtractor.kt b/kotlin-runtime/ftl-runtime/src/main/kotlin/xyz/block/ftl/ksp/SchemaExtractor.kt
index fe4c174912..ea1cebf576 100644
--- a/kotlin-runtime/ftl-runtime/src/main/kotlin/xyz/block/ftl/ksp/SchemaExtractor.kt
+++ b/kotlin-runtime/ftl-runtime/src/main/kotlin/xyz/block/ftl/ksp/SchemaExtractor.kt
@@ -164,7 +164,7 @@ class SchemaExtractor(val logger: KSPLogger, val options: Map<String, String>) :
     modules.map {
       Module(name = it.key, decls = it.value.decls.sortedBy { it.data_ == null }, comments = it.value.comments)
     }.forEach {
-      val file = File(outputDirectory.absolutePath, it.name)
+      val file = File(outputDirectory.absolutePath, "schema.pb")
       file.createNewFile()
       val os = FileOutputStream(file)
       os.write(it.encode())