diff --git a/src/core/arm/dynarmic/arm_dynarmic.h b/src/core/arm/dynarmic/arm_dynarmic.h
index ffedfbc91..f86bc32c3 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.h
+++ b/src/core/arm/dynarmic/arm_dynarmic.h
@@ -17,7 +17,7 @@ struct PageTable;
 
 class ARM_Dynarmic final : public ARM_Interface {
 public:
-    ARM_Dynarmic(PrivilegeMode initial_mode);
+    explicit ARM_Dynarmic(PrivilegeMode initial_mode);
 
     void Run() override;
     void Step() override;
diff --git a/src/core/arm/dyncom/arm_dyncom.h b/src/core/arm/dyncom/arm_dyncom.h
index 3c6cc3bda..c0f456011 100644
--- a/src/core/arm/dyncom/arm_dyncom.h
+++ b/src/core/arm/dyncom/arm_dyncom.h
@@ -12,7 +12,7 @@
 
 class ARM_DynCom final : public ARM_Interface {
 public:
-    ARM_DynCom(PrivilegeMode initial_mode);
+    explicit ARM_DynCom(PrivilegeMode initial_mode);
     ~ARM_DynCom();
 
     void Run() override;