diff --git a/Makefile b/Makefile
index 0f931a2030..450a1d4483 100644
--- a/Makefile
+++ b/Makefile
@@ -2004,6 +2004,7 @@ endif
 ifdef USE_NED_ALLOCATOR
 compat/nedmalloc/nedmalloc.sp compat/nedmalloc/nedmalloc.o: EXTRA_CPPFLAGS = \
 	-DNDEBUG -DOVERRIDE_STRDUP -DREPLACE_SYSTEM_ALLOCATOR
+compat/nedmalloc/nedmalloc.sp: SPARSE_FLAGS += -Wno-non-pointer-null
 endif
 
 git-%$X: %.o GIT-LDFLAGS $(GITLIBS)
diff --git a/compat/nedmalloc/malloc.c.h b/compat/nedmalloc/malloc.c.h
index 1401a67274..fdcca82ba7 100644
--- a/compat/nedmalloc/malloc.c.h
+++ b/compat/nedmalloc/malloc.c.h
@@ -1802,7 +1802,7 @@ struct win32_mlock_t
 
 static MLOCK_T malloc_global_mutex = { 0, 0, 0};
 
-static FORCEINLINE long win32_getcurrentthreadid() {
+static FORCEINLINE long win32_getcurrentthreadid(void) {
 #ifdef _MSC_VER
 #if defined(_M_IX86)
   long *threadstruct=(long *)__readfsdword(0x18);
diff --git a/compat/nedmalloc/nedmalloc.c b/compat/nedmalloc/nedmalloc.c
index 91c4e7f27b..609ebba125 100644
--- a/compat/nedmalloc/nedmalloc.c
+++ b/compat/nedmalloc/nedmalloc.c
@@ -159,8 +159,8 @@ struct mallinfo nedmallinfo(void) THROWSPEC			{ return nedpmallinfo(0); }
 #endif
 int    nedmallopt(int parno, int value) THROWSPEC	{ return nedpmallopt(0, parno, value); }
 int    nedmalloc_trim(size_t pad) THROWSPEC			{ return nedpmalloc_trim(0, pad); }
-void   nedmalloc_stats() THROWSPEC					{ nedpmalloc_stats(0); }
-size_t nedmalloc_footprint() THROWSPEC				{ return nedpmalloc_footprint(0); }
+void   nedmalloc_stats(void) THROWSPEC					{ nedpmalloc_stats(0); }
+size_t nedmalloc_footprint(void) THROWSPEC				{ return nedpmalloc_footprint(0); }
 void **nedindependent_calloc(size_t elemsno, size_t elemsize, void **chunks) THROWSPEC	{ return nedpindependent_calloc(0, elemsno, elemsize, chunks); }
 void **nedindependent_comalloc(size_t elems, size_t *sizes, void **chunks) THROWSPEC	{ return nedpindependent_comalloc(0, elems, sizes, chunks); }