diff --git a/Python/ceval.c b/Python/ceval.c
index 0459c57c4cbaed..cb7e93bdfe5101 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -344,7 +344,7 @@ _Py_EnterRecursiveCallUnchecked(PyThreadState *tstate)
 #elif defined(__hppa__) || defined(__powerpc64__)
 #  define Py_C_STACK_SIZE 2000000
 #else
-#  define Py_C_STACK_SIZE 5000000
+#  define Py_C_STACK_SIZE 3000000
 #endif
 
 void