diff --git a/module/zfs/spa.c b/module/zfs/spa.c
index a21b0decf6a3..b144d0652930 100644
--- a/module/zfs/spa.c
+++ b/module/zfs/spa.c
@@ -1392,7 +1392,7 @@ spa_taskq_param_set(zio_type_t t, char *cfg)
 }
 
 static int
-spa_taskq_param_get(zio_type_t t, char *buf)
+spa_taskq_param_get(zio_type_t t, char *buf, boolean_t add_newline)
 {
 	int pos = 0;
 
@@ -1410,7 +1410,8 @@ spa_taskq_param_get(zio_type_t t, char *buf)
 		sep = " ";
 	}
 
-	buf[pos++] = '\n';
+	if (add_newline)
+		buf[pos++] = '\n';
 	buf[pos] = '\0';
 
 	return (pos);
@@ -1428,7 +1429,7 @@ spa_taskq_read_param_set(const char *val, zfs_kernel_param_t *kp)
 static int
 spa_taskq_read_param_get(char *buf, zfs_kernel_param_t *kp)
 {
-	return (spa_taskq_param_get(ZIO_TYPE_READ, buf));
+	return (spa_taskq_param_get(ZIO_TYPE_READ, buf, TRUE));
 }
 
 static int
@@ -1442,11 +1443,9 @@ spa_taskq_write_param_set(const char *val, zfs_kernel_param_t *kp)
 static int
 spa_taskq_write_param_get(char *buf, zfs_kernel_param_t *kp)
 {
-	return (spa_taskq_param_get(ZIO_TYPE_WRITE, buf));
+	return (spa_taskq_param_get(ZIO_TYPE_WRITE, buf, TRUE));
 }
 #else
-#include <sys/sbuf.h>
-
 /*
  * On FreeBSD load-time parameters can be set up before malloc() is available,
  * so we have to do all the parsing work on the stack.
@@ -1457,19 +1456,11 @@ static int
 spa_taskq_read_param(ZFS_MODULE_PARAM_ARGS)
 {
 	char buf[SPA_TASKQ_PARAM_MAX];
-	int err = 0;
-
-	if (req->newptr == NULL) {
-		int len = spa_taskq_param_get(ZIO_TYPE_READ, buf);
-		struct sbuf *s = sbuf_new_for_sysctl(NULL, NULL, len+1, req);
-		sbuf_cpy(s, buf);
-		err = sbuf_finish(s);
-		sbuf_delete(s);
-		return (err);
-	}
+	int err;
 
+	(void) spa_taskq_param_get(ZIO_TYPE_READ, buf, FALSE);
 	err = sysctl_handle_string(oidp, buf, sizeof (buf), req);
-	if (err)
+	if (err || req->newptr == NULL)
 		return (err);
 	return (spa_taskq_param_set(ZIO_TYPE_READ, buf));
 }
@@ -1478,19 +1469,11 @@ static int
 spa_taskq_write_param(ZFS_MODULE_PARAM_ARGS)
 {
 	char buf[SPA_TASKQ_PARAM_MAX];
-	int err = 0;
-
-	if (req->newptr == NULL) {
-		int len = spa_taskq_param_get(ZIO_TYPE_WRITE, buf);
-		struct sbuf *s = sbuf_new_for_sysctl(NULL, NULL, len+1, req);
-		sbuf_cpy(s, buf);
-		err = sbuf_finish(s);
-		sbuf_delete(s);
-		return (err);
-	}
+	int err;
 
+	(void) spa_taskq_param_get(ZIO_TYPE_WRITE, buf, FALSE);
 	err = sysctl_handle_string(oidp, buf, sizeof (buf), req);
-	if (err)
+	if (err || req->newptr == NULL)
 		return (err);
 	return (spa_taskq_param_set(ZIO_TYPE_WRITE, buf));
 }