1 files changed, 1 insertions, 1 deletions

diff --git a/INSTALL.md b/INSTALL.md
index 1ab4fa01..546c8b64 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -28,7 +28,7 @@ following table:
 | ARCH | x86, x86_64, arm, arm64 | x86_64 |
 | HOST_ARCH | x86, x86_64, arm, arm64 | *derived from ARCH* |
 | TARGET_ARCH | x86, x86_64, arm, arm64 | *derived from ARCH* |
-| COMPILER_FAMILY | gnu, clang | clang |
+| COMPILER_FAMILY | gnu, clang, unknown | clang |
 | DEBUG | true, false | false |
 | BUILD_STATIC_BINARY | true, false | false |