diff --git a/Source/cmake/OptionsWPE.cmake b/Source/cmake/OptionsWPE.cmake
index f9bf9d15dfbb5..30848cd60f3aa 100644
--- a/Source/cmake/OptionsWPE.cmake
+++ b/Source/cmake/OptionsWPE.cmake
@@ -229,8 +229,8 @@ if (COMPILER_IS_GCC_OR_CLANG AND UNIX AND NOT APPLE)
     if (CMAKE_COMPILER_IS_GNUCC AND (WTF_CPU_ARM64 OR WTF_CPU_ARM OR WTF_CPU_MIPS))
         set(CMAKE_COMPILER_SIZE_OPT_FLAGS " -finline-limit=90 -fsection-anchors")
     endif ()
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}${CMAKE_COMPILER_SIZE_OPT_FLAGS} -ffunction-sections -fdata-sections -Werror -Wformat=1 -Wno-pragmas")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}${CMAKE_COMPILER_SIZE_OPT_FLAGS} -ffunction-sections -fdata-sections -fno-rtti -Werror -Wformat=1 -Wno-pragmas")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}${CMAKE_COMPILER_SIZE_OPT_FLAGS} -ffunction-sections -fdata-sections -Wformat=1 -Wno-pragmas")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}${CMAKE_COMPILER_SIZE_OPT_FLAGS} -ffunction-sections -fdata-sections -fno-rtti -Wformat=1 -Wno-pragmas")
     set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} -Wl,--gc-sections")
     if (NOT ENABLE_ADDRESS_SANITIZER)
         set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fno-stack-protector")