diff --git a/contrib/src/stc/Makefile.in b/contrib/src/stc/Makefile.in
index 7203ecc582..042da17f87 100644
--- a/contrib/src/stc/Makefile.in
+++ b/contrib/src/stc/Makefile.in
@@ -9,7 +9,7 @@ top_srcdir = @top_srcdir@/..
 top_builddir = ../../..
 
 scintilla_dir = $(top_srcdir)/contrib/src/stc/scintilla
-libsrc_dir = contrib/src/stc/$(scintilla_dir)/src
+libsrc_dir = contrib/src/stc/scintilla/src:$(top_srcdir)/contrib/src/stc
 
 TARGET_LIBNAME=lib@WX_LIBRARY_BASENAME@_stc-@WX_RELEASE@