diff --git a/src/mzscheme/gc2/Makefile.in b/src/mzscheme/gc2/Makefile.in
index aa28f6ba91..11ebe9a73b 100644
--- a/src/mzscheme/gc2/Makefile.in
+++ b/src/mzscheme/gc2/Makefile.in
@@ -320,7 +320,7 @@ gc2.@LTO@: $(srcdir)/gc2.c $(srcdir)/newgc.c $(srcdir)/gc2.h \
        $(srcdir)/page_range.c $(srcdir)/protect_range.c $(srcdir)/var_stack.c $(srcdir)/stack_comp.c \
        $(srcdir)/../utils/splay.c $(srcdir)/my_qsort.c $(srcdir)/backtrace.c \
        $(srcdir)/weak.c $(srcdir)/fnls.c $(srcdir)/../include/scheme.h $(srcdir)/../src/schpriv.h
-	$(CC) $(CFLAGS) -c $(srcdir)/gc2.c -o gc2.@LTO@
+	$(CC) $(CFLAGS) -I$(builddir)/.. -c $(srcdir)/gc2.c -o gc2.@LTO@
 
 new_gc.@LTO@: $(srcdir)/newgc.c $(srcdir)/gc2.h \
        $(srcdir)/vm_osx.c $(srcdir)/vm_mmap.c $(srcdir)/vm_osk.c $(srcdir)/vm.c\
diff --git a/src/mzscheme/gc2/platforms.h b/src/mzscheme/gc2/platforms.h
index a5868477e9..c6aaae15af 100644
--- a/src/mzscheme/gc2/platforms.h
+++ b/src/mzscheme/gc2/platforms.h
@@ -4,7 +4,7 @@
 # define inline _inline
 #endif
 
-#include "../mzconfig.h"
+#include "mzconfig.h"
 
 #ifdef SIZEOF_LONG
 # if SIZEOF_LONG == 8