diff --git a/src/tests/add-ons/kernel/kernelland_emu.cpp b/src/tests/add-ons/kernel/kernelland_emu.cpp
index d332cad914..5d48de88ad 100644
--- a/src/tests/add-ons/kernel/kernelland_emu.cpp
+++ b/src/tests/add-ons/kernel/kernelland_emu.cpp
@@ -722,6 +722,7 @@ dprintf(const char *format,...)
 	printf("\33[34m");
 	vprintf(format, args);
 	printf("\33[0m");
+	fflush(stdout);
 	va_end(args);
 }
 
diff --git a/src/tests/kits/net/tcp_tester.cpp b/src/tests/kits/net/tcp_tester.cpp
index 1c75eb4920..b33783176e 100644
--- a/src/tests/kits/net/tcp_tester.cpp
+++ b/src/tests/kits/net/tcp_tester.cpp
@@ -822,7 +822,7 @@ domain_receive_data(net_buffer *buffer)
 		if (lastTime == 0)
 			lastTime = now;
 
-		printf("% 3ld %8.6f (%8.6f) ", packetNumber, (now - sStartTime) / 1000000.0,
+		printf("\33[0m% 3ld %8.6f (%8.6f) ", packetNumber, (now - sStartTime) / 1000000.0,
 			(now - lastTime) / 1000000.0);
 		lastTime = now;