diff --git a/src/engine/platform/nds.cpp b/src/engine/platform/nds.cpp
index a92075bd1..0c3c075bc 100644
--- a/src/engine/platform/nds.cpp
+++ b/src/engine/platform/nds.cpp
@@ -87,14 +87,14 @@ void DivPlatformNDS::acquire(short** buf, size_t len) {
   }
 }
 
-inline u8 DivPlatformNDS::read_byte(u32 addr) {
+u8 DivPlatformNDS::read_byte(u32 addr) {
   if (addr<getSampleMemCapacity()) {
     return sampleMem[addr];
   }
   return 0;
 }
 
-inline void DivPlatformNDS::write_byte(u32 addr, u8 data) {
+void DivPlatformNDS::write_byte(u32 addr, u8 data) {
   if (addr<getSampleMemCapacity()) {
     sampleMem[addr]=data;
   }
diff --git a/src/engine/platform/nds.h b/src/engine/platform/nds.h
index 39ff8b84d..cf846d847 100644
--- a/src/engine/platform/nds.h
+++ b/src/engine/platform/nds.h
@@ -58,8 +58,8 @@ class DivPlatformNDS: public DivDispatch, public nds_sound_intf {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    virtual inline u8 read_byte(u32 addr) override;
-    virtual inline void write_byte(u32 addr, u8 data) override;
+    virtual u8 read_byte(u32 addr) override;
+    virtual void write_byte(u32 addr, u8 data) override;
 
     virtual void acquire(short** buf, size_t len) override;
     virtual int dispatch(DivCommand c) override;
diff --git a/src/engine/platform/sound/nds.hpp b/src/engine/platform/sound/nds.hpp
index fb1dd6fbc..8f67f436a 100644
--- a/src/engine/platform/sound/nds.hpp
+++ b/src/engine/platform/sound/nds.hpp
@@ -76,11 +76,11 @@ namespace nds_sound_emu
 			{
 			}
 
-			virtual inline u8 read_byte(u32 addr) { return 0; }
+			virtual u8 read_byte(u32 addr) { return 0; }
 			inline u16 read_word(u32 addr) { return read_byte(addr) | (u16(read_byte(addr + 1)) << 8); }
 			inline u32 read_dword(u32 addr) { return read_word(addr) | (u16(read_word(addr + 2)) << 16); }
 
-			virtual inline void write_byte(u32 addr, u8 data) {}
+			virtual void write_byte(u32 addr, u8 data) {}
 			inline void write_word(u32 addr, u16 data)
 			{
 				write_byte(addr, data & 0xff);