diff --git a/compiler/concrete-optimizer b/compiler/concrete-optimizer
index 20833cefa..d0654c0fa 160000
--- a/compiler/concrete-optimizer
+++ b/compiler/concrete-optimizer
@@ -1 +1 @@
-Subproject commit 20833cefac32b14ab409a6588593573e42839bc1
+Subproject commit d0654c0fa7a0ba1bcb74e3683c9a01194d7db328
diff --git a/compiler/include/concretelang/Support/V0Parameters.h b/compiler/include/concretelang/Support/V0Parameters.h
index 78b3ca0a2..5df0b78a9 100644
--- a/compiler/include/concretelang/Support/V0Parameters.h
+++ b/compiler/include/concretelang/Support/V0Parameters.h
@@ -26,6 +26,7 @@ constexpr bool DEFAULT_STRATEGY_V0 = false;
 constexpr bool DEFAULT_USE_GPU_CONSTRAINTS = false;
 constexpr concrete_optimizer::Encoding DEFAULT_ENCODING =
     concrete_optimizer::Encoding::Auto;
+constexpr bool DEFAULT_CACHE_ON_DISK = true;
 
 struct Config {
   double p_error;
@@ -36,6 +37,7 @@ struct Config {
   double fallback_log_norm_woppbs;
   bool use_gpu_constraints;
   concrete_optimizer::Encoding encoding;
+  bool cache_on_disk;
 };
 
 constexpr Config DEFAULT_CONFIG = {
@@ -47,6 +49,7 @@ constexpr Config DEFAULT_CONFIG = {
     DEFAULT_FALLBACK_LOG_NORM_WOPPBS,
     DEFAULT_USE_GPU_CONSTRAINTS,
     DEFAULT_ENCODING,
+    DEFAULT_CACHE_ON_DISK,
 };
 
 using Dag = rust::Box<concrete_optimizer::OperationDag>;
diff --git a/compiler/lib/Support/V0Parameters.cpp b/compiler/lib/Support/V0Parameters.cpp
index 1245ec419..1ca371e12 100644
--- a/compiler/lib/Support/V0Parameters.cpp
+++ b/compiler/lib/Support/V0Parameters.cpp
@@ -30,6 +30,7 @@ concrete_optimizer::Options options_from_config(optimizer::Config config) {
       /* .default_log_norm2_woppbs = */ config.fallback_log_norm_woppbs,
       /* .use_gpu_constraints = */ config.use_gpu_constraints,
       /* .encoding = */ config.encoding,
+      /* .cache_on_disk = */ config.cache_on_disk,
   };
   return options;
 }
diff --git a/compiler/src/main.cpp b/compiler/src/main.cpp
index 9b8ce4314..5930cea49 100644
--- a/compiler/src/main.cpp
+++ b/compiler/src/main.cpp
@@ -249,6 +249,12 @@ llvm::cl::opt<concrete_optimizer::Encoding> optimizerEncoding(
     llvm::cl::values(clEnumValN(concrete_optimizer::Encoding::Native, "crt",
                                 "Chineese Reminder Theorem representation")));
 
+llvm::cl::opt<bool> optimizerNoCacheOnDisk(
+    "optimizer-no-cache-on-disk",
+    llvm::cl::desc("Optimizer cache is sync from/to disk. Usefull to debug "
+                   "cache issues."),
+    llvm::cl::init(false));
+
 llvm::cl::list<int64_t> fhelinalgTileSizes(
     "fhelinalg-tile-sizes",
     llvm::cl::desc(
@@ -401,6 +407,7 @@ cmdlineCompilationOptions() {
   options.optimizerConfig.display = cmdline::displayOptimizerChoice;
   options.optimizerConfig.strategy_v0 = cmdline::optimizerV0;
   options.optimizerConfig.encoding = cmdline::optimizerEncoding;
+  options.optimizerConfig.cache_on_disk = !cmdline::optimizerNoCacheOnDisk;
 
   if (!std::isnan(options.optimizerConfig.global_p_error) &&
       options.optimizerConfig.strategy_v0) {