diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/cmdline/KSPJvmMain.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/cmdline/KSPJvmMain.kt
index a3672f79bd..24a131aad2 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/cmdline/KSPJvmMain.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/cmdline/KSPJvmMain.kt
@@ -9,6 +9,7 @@ import com.google.devtools.ksp.processing.kspJvmArgParserHelp
 import java.io.File
 import java.net.URLClassLoader
 import java.util.ServiceLoader
+import kotlin.system.exitProcess
 
 class KSPJvmMain {
     companion object {
@@ -45,5 +46,6 @@ internal fun runWithArgs(args: Array<String>, parse: (Array<String>) -> Pair<KSP
         )
         .toList() as List<SymbolProcessorProvider>
 
-    KotlinSymbolProcessing(config, processorProviders, logger).execute()
+    val exitCode = KotlinSymbolProcessing(config, processorProviders, logger).execute()
+    exitProcess(exitCode.code)
 }
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
index b226345d07..083d4fcda3 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
@@ -126,7 +126,7 @@ class KotlinSymbolProcessing(
     val logger: KSPLogger
 ) {
     enum class ExitCode(
-        @Suppress("UNUSED_PARAMETER") code: Int
+        val code: Int
     ) {
         OK(0),