diff --git a/src/lib/Makefile b/src/lib/Makefile
index a50bdf0316..7079433897 100644
--- a/src/lib/Makefile
+++ b/src/lib/Makefile
@@ -34,6 +34,10 @@ FILES=\
 	utf8\
 
 TEST=\
+	bignum\
+	bufio\
+	sort\
+	strings\
 	utf8\
 
 clean.dirs: $(addsuffix .dirclean, $(DIRS))
diff --git a/src/run.bash b/src/run.bash
index 64795b5e72..dccc924eb2 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -24,10 +24,14 @@ maketest() {
 }
 
 maketest \
+	lib/fmt\
+	lib/hash\
 	lib/math\
 	lib/reflect\
 	lib/regexp\
 	lib/strconv\
+	lib/tabwriter\
+	lib/time\
 
 # all of these are subtly different
 # from what maketest does.