diff --git a/Makefile b/Makefile
index 867fbf2..fbcde68 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,8 @@ endif
 
 XMPPIPE_SANDBOX ?= XMPPIPE_SANDBOX_NULL
 XMPPIPE_SANDBOX_RLIMIT_NOFILE ?= -1
-CFLAGS += -D$(XMPPIPE_SANDBOX) -DXMPPIPE_SANDBOX_RLIMIT_NOFILE=$(XMPPIPE_SANDBOX_RLIMIT_NOFILE)
+CFLAGS += -DXMPPIPE_SANDBOX=\"$(XMPPIPE_SANDBOX)\" -D$(XMPPIPE_SANDBOX) \
+		  -DXMPPIPE_SANDBOX_RLIMIT_NOFILE=$(XMPPIPE_SANDBOX_RLIMIT_NOFILE)
 
 all:
 	$(CC) -g -Wall $(CFLAGS) -o xmppipe src/*.c $(LDFLAGS) -lstrophe
diff --git a/src/xmppipe.c b/src/xmppipe.c
index 1c7ae9b..9010497 100644
--- a/src/xmppipe.c
+++ b/src/xmppipe.c
@@ -221,9 +221,11 @@ main(int argc, char **argv)
     if (xmppipe_connect_init(state) < 0)
         errx(EXIT_FAILURE, "XMPP handshake failed");
 
-    if (xmppipe_sandbox_init(state) < 0) {
+    if (state->verbose)
+        (void)fprintf(stderr, "sandbox: entering %s\n", XMPPIPE_SANDBOX);
+
+    if (xmppipe_sandbox_init(state) < 0)
         err(EXIT_FAILURE, "sandbox failed");
-    }
 
     if (xmppipe_stream_init(state) < 0)
         errx(EXIT_FAILURE, "enabling stream management failed");