diff --git a/dlls/urlmon/Makefile.in b/dlls/urlmon/Makefile.in
index f95e7972829..a29c831e455 100644
--- a/dlls/urlmon/Makefile.in
+++ b/dlls/urlmon/Makefile.in
@@ -1,7 +1,6 @@
 MODULE    = urlmon.dll
 IMPORTLIB = urlmon
 IMPORTS   = uuid ole32 oleaut32 shell32 rpcrt4 shlwapi wininet user32 advapi32
-EXTRADEFS = -D_URLMON_
 DELAYIMPORTS = advpack
 
 C_SRCS = \