diff --git a/src/app-layer-ftp.c b/src/app-layer-ftp.c
index 3a6dc16721..3c6a06b0c6 100644
--- a/src/app-layer-ftp.c
+++ b/src/app-layer-ftp.c
@@ -248,6 +248,9 @@ static void *FTPStateAlloc(void) {
 }
 
 static void FTPStateFree(void *s) {
+    FtpState *fstate = (FtpState *) s;
+    if (fstate->port_line != NULL)
+        SCFree(fstate->port_line);
     SCFree(s);
 #ifdef DEBUG
     SCMutexLock(&ftp_state_mem_lock);