--- usr/lib/pkcs11/api/shrd_mem.c.in
+++ usr/lib/pkcs11/api/shrd_mem.c.in
@@ -322,6 +322,8 @@
 #include <slotmgr.h>
 #include <apictl.h>
 
+#include <string.h>
+
 #define MAPFILENAME "@CONFIG_PATH@/.apimap"
 
 extern  API_Proc_Struct_t  *Anchor;