diff --git a/src/exec.cpp b/src/exec.cpp
index b2eabe59..dd0c3310 100644
--- a/libs/python/src/exec.cpp
+++ b/libs/python/src/exec.cpp
@@ -106,7 +106,7 @@
   char *f = const_cast<char *>(filename);
   // Let python open the file to avoid potential binary incompatibilities.
 #if PY_VERSION_HEX >= 0x03040000
-  FILE *fs = _Py_fopen(f, "r");
+  FILE *fs = fopen(f, "r");
 #elif PY_VERSION_HEX >= 0x03000000
   PyObject *fo = Py_BuildValue("s", f);
   FILE *fs = _Py_fopen(fo, "r");