diff --git a/packages/react-native/ReactCommon/react/performance/timeline/PerformanceEntryReporter.h b/packages/react-native/ReactCommon/react/performance/timeline/PerformanceEntryReporter.h
index a42d43fdd7a..e6399abe46a 100644
--- a/packages/react-native/ReactCommon/react/performance/timeline/PerformanceEntryReporter.h
+++ b/packages/react-native/ReactCommon/react/performance/timeline/PerformanceEntryReporter.h
@@ -158,8 +158,9 @@ class PerformanceEntryReporter {
         return resourceTimingBuffer_;
       case PerformanceEntryType::_NEXT:
         throw std::logic_error("Cannot get buffer for _NEXT entry type");
+      default:
+        throw std::logic_error("Unhandled PerformanceEntryType");
     }
-    throw std::logic_error("Unhandled PerformanceEntryType");
   }
 
   inline PerformanceEntryBuffer& getBufferRef(PerformanceEntryType entryType) {
@@ -176,8 +177,9 @@ class PerformanceEntryReporter {
         return resourceTimingBuffer_;
       case PerformanceEntryType::_NEXT:
         throw std::logic_error("Cannot get buffer for _NEXT entry type");
+      default:
+        throw std::logic_error("Unhandled PerformanceEntryType");
     }
-    throw std::logic_error("Unhandled PerformanceEntryType");
   }
 
   void traceMark(
diff --git a/packages/react-native/ReactCommon/react/renderer/graphics/ValueUnit.h b/packages/react-native/ReactCommon/react/renderer/graphics/ValueUnit.h
index 793f3bb2ef6..4777ef3f217 100644
--- a/packages/react-native/ReactCommon/react/renderer/graphics/ValueUnit.h
+++ b/packages/react-native/ReactCommon/react/renderer/graphics/ValueUnit.h
@@ -36,9 +36,9 @@ struct ValueUnit {
       case UnitType::Percent:
         return value * referenceLength * 0.01f;
       case UnitType::Undefined:
+      default:
         return 0.0f;
     }
-    return 0.0f;
   }
 
   constexpr operator bool() const {
diff --git a/packages/react-native/ReactCommon/react/renderer/runtimescheduler/SchedulerPriorityUtils.h b/packages/react-native/ReactCommon/react/renderer/runtimescheduler/SchedulerPriorityUtils.h
index d3b5ed8a6a1..68523e4a26b 100644
--- a/packages/react-native/ReactCommon/react/renderer/runtimescheduler/SchedulerPriorityUtils.h
+++ b/packages/react-native/ReactCommon/react/renderer/runtimescheduler/SchedulerPriorityUtils.h
@@ -32,9 +32,10 @@ static inline SchedulerPriority fromRawValue(double value) {
       return SchedulerPriority::LowPriority;
     case 5:
       return SchedulerPriority::IdlePriority;
+    default:
+      react_native_assert(false && "Unsupported SchedulerPriority value");
+      return SchedulerPriority::NormalPriority;
   }
-  react_native_assert(false && "Unsupported SchedulerPriority value");
-  return SchedulerPriority::NormalPriority;
 }
 
 static inline HighResDuration timeoutForSchedulerPriority(
@@ -50,9 +51,10 @@ static inline HighResDuration timeoutForSchedulerPriority(
       return HighResDuration::fromChrono(std::chrono::seconds(10));
     case SchedulerPriority::IdlePriority:
       return HighResDuration::fromChrono(std::chrono::minutes(5));
+    default:
+      react_native_assert(false && "Unsupported SchedulerPriority value");
+      return HighResDuration::fromChrono(std::chrono::seconds(5));
   }
-  react_native_assert(false && "Unsupported SchedulerPriority value");
-  return HighResDuration::fromChrono(std::chrono::seconds(5));
 }
 
 } // namespace facebook::react