diff --git a/apps/plugins/doom/rockdoom.c b/apps/plugins/doom/rockdoom.c
index 1d065cc981..a76c9379b3 100644
--- a/apps/plugins/doom/rockdoom.c
+++ b/apps/plugins/doom/rockdoom.c
@@ -181,11 +181,6 @@ cont:
     /* NOTREACHED */
 }
 
-inline void* memcpy(void* dst, const void* src, size_t size)
-{
-   return rb->memcpy(dst, src, size);
-}
-
 struct argvlist
 {
    int timedemo;        // 1 says there's a timedemo
diff --git a/apps/plugins/doom/rockmacros.h b/apps/plugins/doom/rockmacros.h
index 1ead411b85..98f908dc1d 100644
--- a/apps/plugins/doom/rockmacros.h
+++ b/apps/plugins/doom/rockmacros.h
@@ -72,9 +72,6 @@ int my_close(int id);
 #define strcat(a,b)        rb->strcat((a),(b))
 #define snprintf           rb->snprintf
 
-/* Using #define isn't enough with GCC 4.0.1 */
-inline void* memcpy(void* dst, const void* src, size_t size);
-
 #define PACKEDATTR __attribute__((packed)) // Needed for a few things
 #define GAMEBASE ROCKBOX_DIR "/doom/"
 //#define SIMPLECHECKS