diff --git a/build/platform-msvc-common.mk b/build/platform-msvc-common.mk
index 2267a91f..53db8481 100644
--- a/build/platform-msvc-common.mk
+++ b/build/platform-msvc-common.mk
@@ -26,7 +26,7 @@ CFLAGS += -nologo -W3 -EHsc -fp:precise -Zc:wchar_t -Zc:forScope -D_VARIADIC_MAX
 CXX_LINK_O=-nologo -Fe$@
 AR_OPTS=-nologo -out:$@
 CFLAGS_OPT=-O2 -Ob1 -Oy- -Zi -GF -Gm- -GS -Gy -DNDEBUG
-CFLAGS_DEBUG=-Od -Oy- -ZI -RTC1 -D_DEBUG
+CFLAGS_DEBUG=-Od -Oy- -Zi -RTC1 -D_DEBUG
 CFLAGS_M32=
 CFLAGS_M64=
 LINK_LOCAL_DIR=