diff --git a/libraries/libmesosphere/source/init/kern_init_slab_setup.cpp b/libraries/libmesosphere/source/init/kern_init_slab_setup.cpp
index 804ab0a1e..dcff4c205 100644
--- a/libraries/libmesosphere/source/init/kern_init_slab_setup.cpp
+++ b/libraries/libmesosphere/source/init/kern_init_slab_setup.cpp
@@ -60,7 +60,7 @@ namespace ams::kern::init {
         constexpr size_t SlabCountKThread               = 800;
         constexpr size_t SlabCountKEvent                = 700;
         constexpr size_t SlabCountKInterruptEvent       = 100;
-        constexpr size_t SlabCountKPort                 = 256;
+        constexpr size_t SlabCountKPort                 = 256 + 0x20 /* Extra 0x20 ports over Nintendo for homebrew. */;
         constexpr size_t SlabCountKSharedMemory         = 80;
         constexpr size_t SlabCountKTransferMemory       = 200;
         constexpr size_t SlabCountKCodeMemory           = 10;
diff --git a/stratosphere/sm/source/impl/sm_service_manager.cpp b/stratosphere/sm/source/impl/sm_service_manager.cpp
index ea2fae307..7b480c4fe 100644
--- a/stratosphere/sm/source/impl/sm_service_manager.cpp
+++ b/stratosphere/sm/source/impl/sm_service_manager.cpp
@@ -23,7 +23,7 @@ namespace ams::sm::impl {
 
         /* Constexpr definitions. */
         static constexpr size_t ProcessCountMax      = 0x40;
-        static constexpr size_t ServiceCountMax      = 0x100;
+        static constexpr size_t ServiceCountMax      = 0x100 + 0x10; /* Extra 0x10 services over Nintendo for homebrew. */
         static constexpr size_t FutureMitmCountMax   = 0x20;
         static constexpr size_t AccessControlSizeMax = 0x200;