diff --git a/combined.h b/combined.h
index 11370be..0df7a65 100644
--- a/combined.h
+++ b/combined.h
@@ -28,6 +28,7 @@
 #ifdef GWP_ASAN_HOOKS
 #include "gwp_asan/guarded_pool_allocator.h"
 #include "gwp_asan/optional/backtrace.h"
+#include "gwp_asan/optional/options_parser.h"
 #include "gwp_asan/optional/segv_handler.h"
 #endif // GWP_ASAN_HOOKS
 
@@ -183,17 +184,12 @@
   // be functional, best called from PostInitCallback.
   void initGwpAsan() {
 #ifdef GWP_ASAN_HOOKS
-    gwp_asan::options::Options Opt;
-    Opt.Enabled = getFlags()->GWP_ASAN_Enabled;
     // Bear in mind - Scudo has its own alignment guarantees that are strictly
     // enforced. Scudo exposes the same allocation function for everything from
     // malloc() to posix_memalign, so in general this flag goes unused, as Scudo
     // will always ask GWP-ASan for an aligned amount of bytes.
-    Opt.PerfectlyRightAlign = getFlags()->GWP_ASAN_PerfectlyRightAlign;
-    Opt.MaxSimultaneousAllocations =
-        getFlags()->GWP_ASAN_MaxSimultaneousAllocations;
-    Opt.SampleRate = getFlags()->GWP_ASAN_SampleRate;
-    Opt.InstallSignalHandlers = getFlags()->GWP_ASAN_InstallSignalHandlers;
+    gwp_asan::options::initOptions(getEnv("GWP_ASAN_OPTIONS"), Printf);
+    gwp_asan::options::Options Opt = gwp_asan::options::getOptions();
     // Embedded GWP-ASan is locked through the Scudo atfork handler (via
     // Allocator::disable calling GWPASan.disable). Disable GWP-ASan's atfork
     // handler.
diff --git a/flags.cpp b/flags.cpp
index de5153b..285143a 100644
--- a/flags.cpp
+++ b/flags.cpp
@@ -23,13 +23,6 @@
 #define SCUDO_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
 #include "flags.inc"
 #undef SCUDO_FLAG
-
-#ifdef GWP_ASAN_HOOKS
-#define GWP_ASAN_OPTION(Type, Name, DefaultValue, Description)                 \
-  GWP_ASAN_##Name = DefaultValue;
-#include "gwp_asan/options.inc"
-#undef GWP_ASAN_OPTION
-#endif // GWP_ASAN_HOOKS
 }
 
 void registerFlags(FlagParser *Parser, Flags *F) {
@@ -38,14 +31,6 @@
                        reinterpret_cast<void *>(&F->Name));
 #include "flags.inc"
 #undef SCUDO_FLAG
-
-#ifdef GWP_ASAN_HOOKS
-#define GWP_ASAN_OPTION(Type, Name, DefaultValue, Description)                 \
-  Parser->registerFlag("GWP_ASAN_" #Name, Description, FlagType::FT_##Type,    \
-                       reinterpret_cast<void *>(&F->GWP_ASAN_##Name));
-#include "gwp_asan/options.inc"
-#undef GWP_ASAN_OPTION
-#endif // GWP_ASAN_HOOKS
 }
 
 static const char *getCompileDefinitionScudoDefaultOptions() {
diff --git a/tests/flags_test.cpp b/tests/flags_test.cpp
index 0205052..45918ad 100644
--- a/tests/flags_test.cpp
+++ b/tests/flags_test.cpp
@@ -117,18 +117,3 @@
   EXPECT_TRUE(Flags.delete_size_mismatch);
   EXPECT_EQ(2048, Flags.quarantine_max_chunk_size);
 }
-
-#ifdef GWP_ASAN_HOOKS
-TEST(ScudoFlagsTest, GWPASanFlags) {
-  scudo::FlagParser Parser;
-  scudo::Flags Flags;
-  scudo::registerFlags(&Parser, &Flags);
-  Flags.setDefaults();
-  Flags.GWP_ASAN_Enabled = false;
-  Parser.parseString("GWP_ASAN_Enabled=true:GWP_ASAN_SampleRate=1:"
-                     "GWP_ASAN_InstallSignalHandlers=false");
-  EXPECT_TRUE(Flags.GWP_ASAN_Enabled);
-  EXPECT_FALSE(Flags.GWP_ASAN_InstallSignalHandlers);
-  EXPECT_EQ(1, Flags.GWP_ASAN_SampleRate);
-}
-#endif // GWP_ASAN_HOOKS