diff --git a/core/clang/config.mk b/core/clang/config.mk
index 4393340..acb425d 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -45,8 +45,7 @@
 # Workaround for ccache with clang.
 # See http://petereisentraut.blogspot.com/2011/05/ccache-and-clang.html.
 CLANG_CONFIG_EXTRA_CFLAGS += \
-  -Wno-unused-command-line-argument \
-  -fcolor-diagnostics
+  -Wno-unused-command-line-argument
 
 CLANG_CONFIG_UNKNOWN_CFLAGS := \
   -finline-limit=64 \