diff --git a/lib/libspl/strtoxx.c b/lib/libspl/strtoxx.c
index 67950686e3..bb9cee19da 100644
--- a/lib/libspl/strtoxx.c
+++ b/lib/libspl/strtoxx.c
@@ -24,7 +24,7 @@
  * Use is subject to license terms.
  */
 
-#include <string.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <sys/sunddi.h>