diff --git a/ntoskrnl/CMakeLists.txt b/ntoskrnl/CMakeLists.txt
index b3362814e56..0c91c1f7f40 100644
--- a/ntoskrnl/CMakeLists.txt
+++ b/ntoskrnl/CMakeLists.txt
@@ -3,6 +3,11 @@ PROJECT(NTOS)
 
 include(ntos.cmake)
 
+if (CMAKE_C_COMPILER_ID MATCHES "GNU|Clang")
+    # Make sure we don't duplicate some symbols
+    add_compile_options(-fno-common)
+endif()
+
 set(NTOSKRNL_SOURCE ${SOURCE})
 set(NTOSKRNL_ASM_SOURCE ${ASM_SOURCE})