diff --git a/releasenotes/notes/fix-cuStateVec_enable-0936f2269466e3be.yaml b/releasenotes/notes/fix-cuStateVec_enable-0936f2269466e3be.yaml
new file mode 100644
index 0000000000..ff637520d0
--- /dev/null
+++ b/releasenotes/notes/fix-cuStateVec_enable-0936f2269466e3be.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixed a build break to compile Qiskit Aer with cuQuautum support (`AER_ENABLE_CUQUANTUM=true`).
+    This change does not affect build for CPU and normal GPU binaries.
diff --git a/src/simulators/state_chunk.hpp b/src/simulators/state_chunk.hpp
index db479b13ed..0b0c455d7e 100644
--- a/src/simulators/state_chunk.hpp
+++ b/src/simulators/state_chunk.hpp
@@ -474,7 +474,7 @@ void StateChunk<state_t>::set_config(const Config &config) {
 
 #ifdef AER_CUSTATEVEC
   // cuStateVec configs
-  if (config.cuStateVec_enable)
+  if (config.cuStateVec_enable.has_value())
     cuStateVec_enable_ = config.cuStateVec_enable.value();
 #endif
 }