diff --git a/config/nrfconnect/app/enable-gnu-std.cmake b/config/nrfconnect/app/enable-gnu-std.cmake
index 5f31e1a5c6..4019bbd31b 100644
--- a/config/nrfconnect/app/enable-gnu-std.cmake
+++ b/config/nrfconnect/app/enable-gnu-std.cmake
@@ -1,6 +1,5 @@
 add_library(gnu17 INTERFACE)
 target_compile_options(gnu17
     INTERFACE 
-        $<$<COMPILE_LANGUAGE:CXX>:-std=gnu++17>
-        -D_SYS__PTHREADTYPES_H_)
+        $<$<COMPILE_LANGUAGE:CXX>:-std=gnu++17>)
 target_link_libraries(app PRIVATE gnu17)
diff --git a/config/nrfconnect/chip-module/Kconfig.defaults b/config/nrfconnect/chip-module/Kconfig.defaults
index 8afc13b113..552ca671b3 100644
--- a/config/nrfconnect/chip-module/Kconfig.defaults
+++ b/config/nrfconnect/chip-module/Kconfig.defaults
@@ -24,6 +24,10 @@ if CHIP
 # System configuration
 # ==============================================================================
 
+choice LIBC_IMPLEMENTATION
+    default NEWLIB_LIBC
+endchoice
+
 config ASSERT
     default y
 
diff --git a/src/platform/nrfconnect/SystemPlatformConfig.h b/src/platform/nrfconnect/SystemPlatformConfig.h
index ce0df4d5f6..64ceccddaa 100644
--- a/src/platform/nrfconnect/SystemPlatformConfig.h
+++ b/src/platform/nrfconnect/SystemPlatformConfig.h
@@ -52,3 +52,6 @@ struct ChipDeviceEvent;
 #endif
 
 // ========== Platform-specific Configuration Overrides =========
+
+// Disable Zephyr Socket extensions module, as the Zephyr RTOS now implements recvmsg()
+#define CHIP_SYSTEM_CONFIG_USE_ZEPHYR_SOCKET_EXTENSIONS 0