diff --git a/Makefile b/Makefile
index e49dd70..e569e18 100644
--- a/Makefile
+++ b/Makefile
@@ -188,7 +188,7 @@ $(OBJDIR)/%.d: $(SRCDIR)/%.f90 | $(OBJDIR)
 	sed -nE 's@^[[:blank:]]*use[[:blank:]]+'\
 	'([^,[:blank:]&]+).*@$(OBJDIR)/\1.o \\@p' | \
 	 sort -u >> '$@'
-	@sed -nE 's@^#include "(.+)"@$(INCDIR)/\1@p' '$<' >> '$@'
+	@sed -nE 's@^#include "(.+)"@$(INCDIR)/\1 \\@p' '$<' >> '$@'
 
 # Load the generated rules
 -include $(DEPS)