diff --git a/import/log4c/log4c/appender.h b/import/log4c/log4c/appender.h
index 56197f0..187f693 100644
--- a/import/log4c/log4c/appender.h
+++ b/import/log4c/log4c/appender.h
@@ -23,6 +23,9 @@
 #include <log4c/defs.h>
 #include <log4c/layout.h>
 #include <stdio.h>
+#include <sd/malloc.h>
+#include <sd/sprintf.h>
+#include <string.h>
 
 __LOG4C_BEGIN_DECLS
 
diff --git a/import/log4c/log4c/appender_type_syslog.c b/import/log4c/log4c/appender_type_syslog.c
index 97965d7..683f0d4 100644
--- a/import/log4c/log4c/appender_type_syslog.c
+++ b/import/log4c/log4c/appender_type_syslog.c
@@ -64,7 +64,7 @@ static int syslog_append(log4c_appender_t*	this,
     // we want to remove any '%' formatting characters from the
     // log string, since syslog will try to interpolate them
     source = a_event->evt_rendered_msg;
-    dest = (char *)malloc((strlen(source)*2) + 1);
+    dest = (char *)sd_malloc((strlen(source)*2) + 1);
     if (dest == NULL) return -1; // out of memory
     *dest = '\0';
     origdest = dest;