diff --git a/pandas/_libs/src/ujson/python/objToJSON.c b/pandas/_libs/src/ujson/python/objToJSON.c
index 62c2870c198c4..a895a46a5977d 100644
--- a/pandas/_libs/src/ujson/python/objToJSON.c
+++ b/pandas/_libs/src/ujson/python/objToJSON.c
@@ -925,15 +925,15 @@ char *Tuple_iterGetName(JSOBJ Py_UNUSED(obj), JSONTypeContext *Py_UNUSED(tc),
 }
 
 //=============================================================================
-// Iterator iteration functions
+// Set iteration functions
 // itemValue is borrowed reference, no ref counting
 //=============================================================================
-void Iter_iterBegin(JSOBJ obj, JSONTypeContext *tc) {
+void Set_iterBegin(JSOBJ obj, JSONTypeContext *tc) {
     GET_TC(tc)->itemValue = NULL;
     GET_TC(tc)->iterator = PyObject_GetIter(obj);
 }
 
-int Iter_iterNext(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
+int Set_iterNext(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
     PyObject *item;
 
     if (GET_TC(tc)->itemValue) {
@@ -951,7 +951,7 @@ int Iter_iterNext(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
     return 1;
 }
 
-void Iter_iterEnd(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
+void Set_iterEnd(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
     if (GET_TC(tc)->itemValue) {
         Py_DECREF(GET_TC(tc)->itemValue);
         GET_TC(tc)->itemValue = NULL;
@@ -963,11 +963,11 @@ void Iter_iterEnd(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
     }
 }
 
-JSOBJ Iter_iterGetValue(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
+JSOBJ Set_iterGetValue(JSOBJ Py_UNUSED(obj), JSONTypeContext *tc) {
     return GET_TC(tc)->itemValue;
 }
 
-char *Iter_iterGetName(JSOBJ Py_UNUSED(obj), JSONTypeContext *Py_UNUSED(tc),
+char *Set_iterGetName(JSOBJ Py_UNUSED(obj), JSONTypeContext *Py_UNUSED(tc),
                        size_t *Py_UNUSED(outLen)) {
     return NULL;
 }
@@ -2040,11 +2040,11 @@ void Object_beginTypeContext(JSOBJ _obj, JSONTypeContext *tc) {
     } else if (PyAnySet_Check(obj)) {
         PRINTMARK();
         tc->type = JT_ARRAY;
-        pc->iterBegin = Iter_iterBegin;
-        pc->iterEnd = Iter_iterEnd;
-        pc->iterNext = Iter_iterNext;
-        pc->iterGetValue = Iter_iterGetValue;
-        pc->iterGetName = Iter_iterGetName;
+        pc->iterBegin = Set_iterBegin;
+        pc->iterEnd = Set_iterEnd;
+        pc->iterNext = Set_iterNext;
+        pc->iterGetValue = Set_iterGetValue;
+        pc->iterGetName = Set_iterGetName;
         return;
     }