diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 4e97337..b78fced 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -1027,9 +1027,13 @@
     if (!_PyArg_CheckPositional(funcname, nargs, 2, 2))
         return NULL;
     x = PyFloat_AsDouble(args[0]);
-    y = PyFloat_AsDouble(args[1]);
-    if ((x == -1.0 || y == -1.0) && PyErr_Occurred())
+    if (x == -1.0 && PyErr_Occurred()) {
         return NULL;
+    }
+    y = PyFloat_AsDouble(args[1]);
+    if (y == -1.0 && PyErr_Occurred()) {
+        return NULL;
+    }
     errno = 0;
     PyFPE_START_PROTECT("in math_2", return 0);
     r = (*func)(x, y);