diff -ruN Python-3.8.11.orig/Python/dynload_hpux.c Python-3.8.11/Python/dynload_hpux.c
--- Python-3.8.11.orig/Python/dynload_hpux.c	2021-06-28 13:08:34.000000000 +0300
+++ Python-3.8.11/Python/dynload_hpux.c	2021-08-04 11:59:52.675143847 +0300
@@ -14,7 +14,7 @@
 #define FUNCNAME_PATTERN "%.20s_%.200s"
 #endif
 
-const char *_PyImport_DynLoadFiletab[] = {SHLIB_EXT, NULL};
+const char *_PyImport_DynLoadFiletab[] = {SHLIB_EXT, ".sl", NULL};
 
 dl_funcptr _PyImport_FindSharedFuncptr(const char *prefix,
                                        const char *shortname,