diff --git a/arch/risc-v/src/cmake/Toolchain.cmake b/arch/risc-v/src/cmake/Toolchain.cmake
index 3bc71ce57f3d8..f9ebc58cc902d 100644
--- a/arch/risc-v/src/cmake/Toolchain.cmake
+++ b/arch/risc-v/src/cmake/Toolchain.cmake
@@ -110,6 +110,14 @@ endif()
 
 set(NO_LTO "-fno-lto")
 
+# override the responsible file flag
+
+if(CMAKE_GENERATOR MATCHES "Ninja")
+  set(CMAKE_C_RESPONSE_FILE_FLAG "$DEFINES $INCLUDES $FLAGS @")
+  set(CMAKE_CXX_RESPONSE_FILE_FLAG "$DEFINES $INCLUDES $FLAGS @")
+  set(CMAKE_ASM_RESPONSE_FILE_FLAG "$DEFINES $INCLUDES $FLAGS @")
+endif()
+
 # override the ARCHIVE command
 set(CMAKE_ARCHIVE_COMMAND "<CMAKE_AR> rcs <TARGET> <LINK_FLAGS> <OBJECTS>")
 set(CMAKE_RANLIB_COMMAND "<CMAKE_RANLIB> <TARGET>")