diff --git a/src/maths/sparse/spDefs.h b/src/maths/sparse/spDefs.h
index 9b7a2b5a7..3fd8cfd36 100644
--- a/src/maths/sparse/spDefs.h
+++ b/src/maths/sparse/spDefs.h
@@ -453,7 +453,6 @@
 /*
  * MEMORY ALLOCATION
  */
-//#include <stddef.h>
 #include <stdlib.h>
 spcEXTERN void *tmalloc(size_t);
 spcEXTERN void *trealloc(const void *, size_t);