diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-09-08-08-29-41.bpo-44959.OSwwPf.rst b/Misc/NEWS.d/next/Core and Builtins/2021-09-08-08-29-41.bpo-44959.OSwwPf.rst
new file mode 100644
index 0000000..02e11ae
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2021-09-08-08-29-41.bpo-44959.OSwwPf.rst
@@ -0,0 +1 @@
+Added fallback to extension modules with '.sl' suffix on HP-UX
\ No newline at end of file
diff --git a/Python/dynload_hpux.c b/Python/dynload_hpux.c
index e36d608..a533730 100644
--- a/Python/dynload_hpux.c
+++ b/Python/dynload_hpux.c
@@ -13,7 +13,7 @@
 #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,