diff --git a/cmds/app_process/app_main.cpp b/cmds/app_process/app_main.cpp
index 12083b6..28db61f 100644
--- a/cmds/app_process/app_main.cpp
+++ b/cmds/app_process/app_main.cpp
@@ -334,7 +334,7 @@
 
     if (zygote) {
         runtime.start("com.android.internal.os.ZygoteInit", args, zygote);
-    } else if (className) {
+    } else if (!className.isEmpty()) {
         runtime.start("com.android.internal.os.RuntimeInit", args, zygote);
     } else {
         fprintf(stderr, "Error: no class name or --zygote supplied.\n");