diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index cf80b335624..7bc51aad704 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -88,8 +88,6 @@ extern "C" {
 /** Set \p N bytes in \p DST to \p VAL */
 #define MEMSET( DST, VAL, N )      _mesa_memset(DST, VAL, N)
 
-#define MEMSET16( DST, VAL, N )   _mesa_memset16( (DST), (VAL), (size_t) (N) )
-
 /*@}*/