diff --git a/tests/kernel/sprintf/prj.conf b/tests/kernel/sprintf/prj.conf
index be2cc128be6..429832a0b17 100644
--- a/tests/kernel/sprintf/prj.conf
+++ b/tests/kernel/sprintf/prj.conf
@@ -1,4 +1,4 @@
 CONFIG_STDOUT_CONSOLE=y
 CONFIG_NUM_IRQS=2
 CONFIG_FLOAT=y
-CONFIG_MAIN_STACK_SIZE=1024
+CONFIG_MAIN_STACK_SIZE=2048