diff --git a/cmake/compiler/clang/settings.cmake b/cmake/compiler/clang/settings.cmake
index 3d420d3830..e6c137e084 100644
--- a/cmake/compiler/clang/settings.cmake
+++ b/cmake/compiler/clang/settings.cmake
@@ -33,10 +33,6 @@ target_compile_options(trinity-compile-option-interface
     -Wno-narrowing
     -Wno-deprecated-register)
 
-target_compile_definitions(trinity-compile-option-interface
-  INTERFACE
-    -DDEBUG=1)
-
 if (BUILD_SHARED_LIBS)
   # -fPIC is needed to allow static linking in shared libs.
   # -fvisibility=hidden sets the default visibility to hidden to prevent exporting of all symbols.