| diff --git a/icu4c/source/common/uloc_tag.cpp b/icu4c/source/common/uloc_tag.cpp |
| index 87b9f63f27..2fb136f22a 100644 |
| --- a/icu4c/source/common/uloc_tag.cpp |
| +++ b/icu4c/source/common/uloc_tag.cpp |
| @@ -1901,7 +1901,9 @@ ultag_parse(const char* tag, int32_t tagLen, int32_t* parsedLen, UErrorCode* sta |
| t->language = T_CString_toLowerCase(pSubtag); |
| |
| pLastGoodPosition = pSep; |
| - next = EXTL | SCRT | REGN | VART | EXTS | PRIV; |
| + next = SCRT | REGN | VART | EXTS | PRIV; |
| + if (subtagLen <= 3) |
| + next |= EXTL; |
| continue; |
| } |
| } |
| @@ -2150,7 +2150,7 @@ ultag_parse(const char* tag, int32_t tagLen, int32_t* parsedLen, UErrorCode* sta |
| } |
| } |
| if (next & PRIV) { |
| - if (uprv_tolower(*pSubtag) == PRIVATEUSE) { |
| + if (uprv_tolower(*pSubtag) == PRIVATEUSE && subtagLen == 1) { |
| char *pPrivuseVal; |
| |
| if (pExtension != NULL) { |
