diff --git a/hw/xfree86/Makefile.am b/hw/xfree86/Makefile.am
index e3ef14fc1..4f0877290 100644
--- a/hw/xfree86/Makefile.am
+++ b/hw/xfree86/Makefile.am
@@ -111,7 +111,7 @@ CLEANFILES = sdksyms.c sdksyms.dep
 EXTRA_DIST += sdksyms.sh
 
 sdksyms.dep sdksyms.c: sdksyms.sh
-	CPP='$(CPP)' AWK='$(AWK)' $(srcdir)/sdksyms.sh $(top_srcdir) $(CFLAGS) $(AM_CFLAGS) $(INCLUDES)
+	CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $(srcdir)/sdksyms.sh $(top_srcdir) $(CFLAGS) $(AM_CFLAGS) $(INCLUDES)
 
 SDKSYMS_DEP = sdksyms.dep
 include $(SDKSYMS_DEP)