diff --git a/contrib/depends/toolchain.cmake.in b/contrib/depends/toolchain.cmake.in
index c86012a6a..f118c754e 100644
--- a/contrib/depends/toolchain.cmake.in
+++ b/contrib/depends/toolchain.cmake.in
@@ -144,6 +144,9 @@ elseif(ARCHITECTURE STREQUAL "aarch64")
 endif()
 
 if(ARCHITECTURE STREQUAL "riscv64")
+  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    set(BUILD_TAG "linux-riscv64")
+  endif()
   set(ARCH_ID "riscv64")
   set(ARCH "rv64gc")
 endif()