1 files changed, 2 insertions, 2 deletions

diff --git a/tools/make.inc b/tools/make.inc
index 1c7b762493..25173ae7e0 100644
--- a/tools/make.inc
+++ b/tools/make.inc
@@ -13,8 +13,8 @@ $(OBJDIR)/%.o: %.S
 $(DEPFILE): $(SOURCES)
         @rm -f $(DEPFILE)
         @(for each in $(SOURCES); do \
-          obj=`echo $$each | sed -e 's/\.c/.o/'`; \
-          $(CC) -MM -MT "$(OBJDIR)/$$obj.o" $(CFLAGS) $$each >> $(DEPFILE) 2>/dev/null; \
+          obj=`echo $$each | sed -e 's/\.[cS]/.o/'`; \
+          $(CC) -MM -MT "$(OBJDIR)/$$obj" $(CFLAGS) $$each >> $(DEPFILE) 2>/dev/null; \
         done; \
         echo "oo" >/dev/null )