diff --git a/src/Makefile.manual b/src/Makefile.manual
index 0c27ff41c..71b6a8a31 100644
--- a/src/Makefile.manual
+++ b/src/Makefile.manual
@@ -1,9 +1,15 @@
+SRC = stdlib_experimental_ascii.f90 \
+      stdlib_experimental_error.f90 \
+      stdlib_experimental_io.f90 \
+      f18estop.f90
+
 LIB = libstdlib.a
 
-OBJS = stdlib_experimental_ascii.o \
-       stdlib_experimental_error.o \
-       stdlib_experimental_io.o \
-	   f18estop.o
+
+
+OBJS = $(SRC:.f90=.o)
+MODS = $(OBJS:.o=.mod)
+SMODS = $(OBJS:.o=*.smod)
 
 .PHONY: all clean
 
@@ -13,7 +19,11 @@ $(LIB): $(OBJS)
 	ar rcs $@ $(OBJS)
 
 clean:
-	$(RM) $(LIB) $(OBJS) *.mod
+	$(RM) $(LIB) $(OBJS) $(MODS) $(SMODS)
 
 %.o: %.f90
 	$(FC) $(FFLAGS) -c $<
+
+
+# Fortran module dependencies
+f18estop.o: stdlib_experimental_error.o
diff --git a/src/tests/Makefile.manual.test.mk b/src/tests/Makefile.manual.test.mk
new file mode 100644
index 000000000..ee0eed31e
--- /dev/null
+++ b/src/tests/Makefile.manual.test.mk
@@ -0,0 +1,27 @@
+# Common Makefile rules that are included from each test subdirectory's
+# Makefile
+
+CPPFLAGS += -I../..
+LDFLAGS += -L../.. -lstdlib
+
+OBJS = $(PROGS_SRC:.f90=.o)
+PROGS = $(OBJS:.o=)
+TESTPROGS = $(PROGS:=TEST)
+
+.PHONY: all clean test $(TESTPROGS)
+
+all: $(PROGS)
+
+test: $(TESTPROGS)
+
+$(TESTPROGS):
+	./$(@:TEST=)
+
+clean:
+	$(RM) $(PROGS) $(OBJS) $(CLEAN_FILES)
+
+%.o: %.f90
+	$(FC) $(FFLAGS) $(CPPFLAGS) -c $<
+
+$(PROGS): %: %.o
+	$(FC) $(FFLAGS) $(CPPFLAGS) -o $@ $^ $(LDFLAGS)
diff --git a/src/tests/ascii/Makefile.manual b/src/tests/ascii/Makefile.manual
index 4d555cb19..8edb7b893 100644
--- a/src/tests/ascii/Makefile.manual
+++ b/src/tests/ascii/Makefile.manual
@@ -1,21 +1,4 @@
-PROG = test_ascii
-OBJS = test_ascii.o
+PROGS_SRC = test_ascii.f90
 
-CPPFLAGS = -I../..
-LDFLAGS = -L../.. -lstdlib
 
-.PHONY: all clean test
-
-all: $(PROG)
-
-$(PROG): $(OBJS)
-	$(FC) $(FFLAGS) $(CPPFLAGS) -o $@ $(OBJS) $(LDFLAGS)
-
-test:
-	./$(PROG)
-
-clean:
-	$(RM) $(PROG) $(OBJS) *.mod
-
-%.o: %.f90
-	$(FC) $(FFLAGS) $(CPPFLAGS) -c $<
+include ../Makefile.manual.test.mk
diff --git a/src/tests/loadtxt/Makefile.manual b/src/tests/loadtxt/Makefile.manual
index f86861866..9cd8fe487 100644
--- a/src/tests/loadtxt/Makefile.manual
+++ b/src/tests/loadtxt/Makefile.manual
@@ -1,25 +1,9 @@
-CPPFLAGS = -I../..
-LDFLAGS = -L../.. -lstdlib
+PROGS_SRC = test_loadtxt.f90 \
+			test_savetxt.f90 \
+			test_loadtxt_qp.f90 \
+			test_savetxt_qp.f90
 
-.PHONY: all clean test
+CLEAN_FILES = tmp.dat tmp_qp.dat
 
-PROGS = test_loadtxt test_savetxt test_loadtxt_qp test_savetxt_qp
-OBJS = $(PROGS:=.o)
 
-
-all: $(PROGS)
-
-$(PROGS): %: %.o
-	$(FC) $(FFLAGS) $(CPPFLAGS) -o $@ $^ $(LDFLAGS)
-
-test:
-	./test_loadtxt
-	./test_loadtxt_qp
-	./test_savetxt
-	./test_savetxt_qp
-
-clean:
-	$(RM) $(PROGS) $(OBJS) tmp.dat tmp_qp.dat
-
-%.o: %.f90
-	$(FC) $(FFLAGS) $(CPPFLAGS) -c $<
+include ../Makefile.manual.test.mk