diff --git a/usr.bin/primes/spsp.c b/usr.bin/primes/spsp.c
index 117333b18e2b..8afd5f12b50f 100644
--- a/usr.bin/primes/spsp.c
+++ b/usr.bin/primes/spsp.c
@@ -26,7 +26,6 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
-#include <assert.h>
 #include <stddef.h>
 #include <stdint.h>