diff --git a/src/include/config-h.in.cmake b/src/include/config-h.in.cmake
index 11c033eff5d..4cdb21e1e81 100644
--- a/src/include/config-h.in.cmake
+++ b/src/include/config-h.in.cmake
@@ -316,7 +316,7 @@
 /* Define if endian type is little endian */
 #cmakedefine CEPH_LITTLE_ENDIAN
 
-#cmakedefine PYTHON_EXECUTABLE "@MGR_PYTHON_EXECUTABLE@"
+#cmakedefine MGR_PYTHON_EXECUTABLE "@MGR_PYTHON_EXECUTABLE@"
 
 /* Define to 1 if you have the `getprogname' function. */
 #cmakedefine HAVE_GETPROGNAME 1
diff --git a/src/mgr/PyModuleRegistry.cc b/src/mgr/PyModuleRegistry.cc
index ac92c9282cc..f7105b87a70 100644
--- a/src/mgr/PyModuleRegistry.cc
+++ b/src/mgr/PyModuleRegistry.cc
@@ -41,10 +41,10 @@ void PyModuleRegistry::init()
   // Set up global python interpreter
 #if PY_MAJOR_VERSION >= 3
 #define WCHAR(s) L ## #s
-  Py_SetProgramName(const_cast<wchar_t*>(WCHAR(PYTHON_EXECUTABLE)));
+  Py_SetProgramName(const_cast<wchar_t*>(WCHAR(MGR_PYTHON_EXECUTABLE)));
 #undef WCHAR
 #else
-  Py_SetProgramName(const_cast<char*>(PYTHON_EXECUTABLE));
+  Py_SetProgramName(const_cast<char*>(MGR_PYTHON_EXECUTABLE));
 #endif
   // Add more modules
   if (g_conf().get_val<bool>("daemonize")) {