diff --git a/sys/mips/include/elf.h b/sys/mips/include/elf.h
index acd8f1bf75d5..976dedb29c96 100644
--- a/sys/mips/include/elf.h
+++ b/sys/mips/include/elf.h
@@ -105,7 +105,7 @@ typedef struct {	/* Auxiliary vector entry on initial stack */
 	int	a_type;			/* Entry type. */
 	union {
 		int	a_val;		/* Integer value. */
-#ifndef __mips_n64
+#if defined(__mips_o32) || defined(__mips_n32)
 		void	*a_ptr;		/* Address. */
 		void	(*a_fcn)(void); /* Function pointer (not used). */
 #endif