diff --git a/src/c/Makefile.in b/src/c/Makefile.in
index 7e4958ebc1bec1f8db4ece890e83d6b9d4f8fe59..ef6889afe967062d391124093f25b41bbc7803f3 100644
--- a/src/c/Makefile.in
+++ b/src/c/Makefile.in
@@ -84,13 +84,13 @@ endif
 
 all: $(DPP) ../libeclmin.a ../cinit.o
 
-$(HDIR)/%.h: $(top_srcdir)/h/%.h
-	cp $< $@
-
 $(HDIR)/impl/%.h: $(top_srcdir)/h/impl/%.h
 	mkdir -p $(HDIR)/impl
 	cp $< $@
 
+$(HDIR)/%.h: $(top_srcdir)/h/%.h
+	cp $< $@
+
 %.c: %.d $(DPP)
 	if test -f ../CROSS-DPP ; then ../CROSS-DPP $< $@ ; else $(DPP) $< $@ ; fi
 %.o: %.d $(DPP) $(HFILES)