diff --git a/src/recv.c b/src/recv.c
index 1631242..8fca23c 100644
--- a/src/recv.c
+++ b/src/recv.c
@@ -9,7 +9,7 @@
 
 int main(int argc, char* argv[])
 {
-    int datafd, controlfd, control_listener, data_listener, listening;
+    int datafd, controlfd, control_listener, data_listener = 0, listening;
     ssize_t rval, rval_send;
     uint8_t statusbyte, cont = CONT;
     uint8_t *buf;
diff --git a/src/send.c b/src/send.c
index d6d9268..3240832 100644
--- a/src/send.c
+++ b/src/send.c
@@ -9,7 +9,7 @@
 
 int main(int argc, char* argv[])
 {
-    int data_listener, controlfd, control_listener, listening, datafd = -1;
+    int data_listener = 0, controlfd, control_listener, listening, datafd = -1;
     ssize_t rval, numbytes, rval_send;
     uint8_t *buf;
     size_t bufsize;
@@ -91,7 +91,7 @@ int main(int argc, char* argv[])
 
         if (rval != 0) {
             perror("close");
-            fprintf(stderr,"close returned %d\n", rval);
+            fprintf(stderr,"close returned %d\n", (int) rval);
             exit(1);
         }
 
@@ -99,7 +99,7 @@ int main(int argc, char* argv[])
             rval = read(controlfd, &statusbyte, 1);
             if (rval != 1) {
                 perror("read on controlfd");
-                fprintf(stderr, "%d\n", rval);
+                fprintf(stderr, "%d\n", (int) rval);
                 exit(1);
             }
             assert(statusbyte == CONT);