diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index 1c78ff0..5040cc9 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -799,7 +799,7 @@
 
         std::string preopted_boot_art_path = StringPrintf("/system/framework/%s/boot.art", isa);
         if (access(preopted_boot_art_path.c_str(), F_OK) == 0) {
-          return PatchoatBootImage(art_path, isa);
+          return PatchoatBootImage(isa_path, isa);
         } else {
           // No preopted boot image. Try to compile.
           return Dex2oatBootImage(boot_classpath_, art_path, oat_path, isa);
@@ -868,14 +868,14 @@
         CHECK_EQ(0, closedir(c_dir)) << "Unable to close directory.";
     }
 
-    bool PatchoatBootImage(const std::string& art_path, const char* isa) const {
+    bool PatchoatBootImage(const std::string& output_dir, const char* isa) const {
         // This needs to be kept in sync with ART, see art/runtime/gc/space/image_space.cc.
 
         std::vector<std::string> cmd;
         cmd.push_back("/system/bin/patchoat");
 
         cmd.push_back("--input-image-location=/system/framework/boot.art");
-        cmd.push_back(StringPrintf("--output-image-file=%s", art_path.c_str()));
+        cmd.push_back(StringPrintf("--output-image-directory=%s", output_dir.c_str()));
 
         cmd.push_back(StringPrintf("--instruction-set=%s", isa));