diff --git a/PC/os2vacpp/config.c b/PC/os2vacpp/config.c
index 7be2b0b..aba6e79 100644
--- a/PC/os2vacpp/config.c
+++ b/PC/os2vacpp/config.c
@@ -33,7 +33,7 @@
 extern void init_socket(void);
 extern void initstruct(void);
 extern void inittime(void);
-extern void initthread(void);
+extern void init_thread(void);
 extern void initcStringIO(void);
 extern void initpcre(void);
 #ifdef WIN32
@@ -76,7 +76,7 @@
         {"struct", initstruct},
         {"time", inittime},
 #ifdef WITH_THREAD
-        {"thread", initthread},
+        {"_thread", init_thread},
 #endif
         {"cStringIO", initcStringIO},
         {"pcre", initpcre},
diff --git a/PC/os2vacpp/makefile b/PC/os2vacpp/makefile
index 93cae73..50119a0 100644
--- a/PC/os2vacpp/makefile
+++ b/PC/os2vacpp/makefile
@@ -868,7 +868,7 @@
 	 $(PY_INCLUDE)\sliceobject.h $(PY_INCLUDE)\stringobject.h \
 	 $(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h $(PY_INCLUDE)\tupleobject.h
 
-threadmodule.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
+_threadmodule.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
 	 $(PY_INCLUDE)\classobject.h $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h \
 	 pyconfig.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
 	 $(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
diff --git a/PC/os2vacpp/makefile.omk b/PC/os2vacpp/makefile.omk
index 2e0aae3..a925efb 100644
--- a/PC/os2vacpp/makefile.omk
+++ b/PC/os2vacpp/makefile.omk
@@ -630,7 +630,7 @@
 	 pythonrun.h rangeobject.h sliceobject.h stringobject.h sysmodule.h \
 	 traceback.h tupleobject.h
 
-threadmodule.obj: abstract.h ceval.h classobject.h cobject.h \
+_threadmodule.obj: abstract.h ceval.h classobject.h cobject.h \
 	 complexobject.h pyconfig.h dictobject.h fileobject.h floatobject.h \
 	 funcobject.h import.h intobject.h intrcheck.h listobject.h \
 	 longobject.h methodobject.h modsupport.h moduleobject.h mymalloc.h \