diff --git a/dlls/l3codeca.acm/Makefile.in b/dlls/l3codeca.acm/Makefile.in
index 451794b2624..31765766d4e 100644
--- a/dlls/l3codeca.acm/Makefile.in
+++ b/dlls/l3codeca.acm/Makefile.in
@@ -1,6 +1,7 @@
 MODULE    = l3codeca.acm
 IMPORTS   = $(MPG123_PE_LIBS) winmm user32 kernelbase
 EXTRAINCL = $(MPG123_PE_CFLAGS)
+EXTRADEFS = -DMPG123_NO_LARGENAME
 
 C_SRCS = \
 	mpegl3.c