diff --git a/boring-sys/build.rs b/boring-sys/build.rs
index 3ec37787f..bb59f234a 100644
--- a/boring-sys/build.rs
+++ b/boring-sys/build.rs
@@ -225,6 +225,12 @@ fn get_boringssl_cmake_config() -> cmake::Config {
                         pwd.join("cmake/aarch64-linux.cmake").as_os_str(),
                     );
                 }
+                "arm" => {
+                    boringssl_cmake.define(
+                        "CMAKE_TOOLCHAIN_FILE",
+                        pwd.join("cmake/armv7-linux.cmake").as_os_str(),
+                    );
+                }
                 _ => {
                     eprintln!(
                         "warning: no toolchain file configured by boring-sys for {}",
diff --git a/boring-sys/cmake/armv7-linux.cmake b/boring-sys/cmake/armv7-linux.cmake
new file mode 100644
index 000000000..db6145461
--- /dev/null
+++ b/boring-sys/cmake/armv7-linux.cmake
@@ -0,0 +1,3 @@
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR armv7)
+# Rely on environment variables to set the compiler and include paths.