diff --git a/fish90/src/Makefile b/fish90/src/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..8b56cb940710d031bf8038a5b1f0223c18546fc1
--- /dev/null
+++ b/fish90/src/Makefile
@@ -0,0 +1,39 @@
+# This Makefile builds the FISH90 library.
+# FISH90 is a modified F90 version of FISHPACK
+
+TOPDIR		:= ../..
+
+include 	$(TOPDIR)/Makefile.config
+include 	$(TOPDIR)/Makefile.inc
+
+LIBFISH		= ../lib/libfish90.a
+
+.PHONY:		all
+
+all:
+	@echo
+	@echo "###############################"
+	@echo "### BUILDING FISH90 library ###"
+	@echo "###############################"
+	@echo
+	make lib
+
+SRCF		= genbunal.f90 gnbnaux.f90 hst_procs.f90 poisson.f90
+SRCC		= hstcrt_wrap.c hstcyl_wrap.c
+
+OBJF		= $(subst .f90,.o,$(SRCF))
+OBJC		= $(subst .c,.o,$(SRCC))
+OBJ		:= fish.o $(OBJF) $(OBJC) 
+
+hst_procs.o :	fish.o genbunal.o poisson.o
+genbunal.o :	gnbnaux.o poisson.o
+poisson.o :	gnbnaux.o
+
+lib :		$(LIBFISH)
+
+$(LIBFISH) :	$(OBJ)
+	$(AR) $@ $? 
+	mv fish.mod ../lib
+
+clean:
+	rm -f $(LIBFISH) $(OBJ) *~ ../lib/fish.mod ../lib/FISH.mod fish.f