diff --git a/src/peigs/comm/GNUmakefile b/src/peigs/comm/GNUmakefile
index 1d451e7400..70eb1be2ac 100644
--- a/src/peigs/comm/GNUmakefile
+++ b/src/peigs/comm/GNUmakefile
@@ -42,10 +42,10 @@ realclean:
  CNFDIR := $(NWCHEM_TOP)/src/config
 .PHONY:	 64_to_32 32_to_64
 64_to_32:
-	$(CNFDIR)/64_to_32 *c *f *F
+	$(CNFDIR)/64_to_32 *h  *F
 
 32_to_64:
-	$(CNFDIR)/32_to_64 *c *f *F
+	$(CNFDIR)/32_to_64 *h *F
 
 .SUFFIXES:	.o .s .F .f .c