diff --git a/Misc/NEWS.d/next/Core and Builtins/2024-06-19-01-58-54.gh-issue-120437.nCkIoI.rst b/Misc/NEWS.d/next/Core and Builtins/2024-06-19-01-58-54.gh-issue-120437.nCkIoI.rst
new file mode 100644
index 000000000000000..9e3c58198325a7e
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2024-06-19-01-58-54.gh-issue-120437.nCkIoI.rst	
@@ -0,0 +1 @@
+Fix ``_CHECK_STACK_SPACE`` optimization problems after introduced in :gh:`118322`.
diff --git a/Python/optimizer_bytecodes.c b/Python/optimizer_bytecodes.c
index 35463f252468033..2ea839f5d6dc979 100644
--- a/Python/optimizer_bytecodes.c
+++ b/Python/optimizer_bytecodes.c
@@ -601,7 +601,6 @@ dummy_func(void) {
         (void)callable;
         (void)self_or_null;
         (void)args;
-        first_valid_check_stack = NULL;
         new_frame = NULL;
         ctx->done = true;
     }
diff --git a/Python/optimizer_cases.c.h b/Python/optimizer_cases.c.h
index 46501862ff2fb37..7274bd2a6fc02b1 100644
--- a/Python/optimizer_cases.c.h
+++ b/Python/optimizer_cases.c.h
@@ -1492,7 +1492,6 @@
             (void)callable;
             (void)self_or_null;
             (void)args;
-            first_valid_check_stack = NULL;
             new_frame = NULL;
             ctx->done = true;
             stack_pointer[-2 - oparg] = (_Py_UopsSymbol *)new_frame;