diff --git a/tests/Makefile b/tests/Makefile
index 80341a111..c395b7720 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -29,6 +29,9 @@ DLIBS = ../src/crypto/libcrypto.a \
 LIBS = $(SLIBS) $(DLIBS)
 LLIBS = -Wl,--start-group $(DLIBS) -Wl,--end-group $(SLIBS)
 
+# glibc < 2.17 needs -lrt for clock_gettime()
+LLIBS += -lrt
+
 ../src/utils/libutils.a:
 	$(MAKE) -C ../src/utils
 
@@ -43,43 +46,43 @@ test-aes: test-aes.o $(LIBS)
 	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-asn1: test-asn1.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-base64: test-base64.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-bitfield: test-bitfield.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-https: test-https.o $(LIBS)
 	$(LDO) $(LDFLAGS) -o $@ $< $(LLIBS)
 
 test-list: test-list.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-md4: test-md4.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-md5: test-md5.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^ $(LIBS)
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-milenage: test-milenage.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-ms_funcs: test-ms_funcs.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-printf: test-printf.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-rc4: test-rc4.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-sha1: test-sha1.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^ $(LIBS)
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-sha256: test-sha256.o $(LIBS)
-	$(LDO) $(LDFLAGS) -o $@ $^
+	$(LDO) $(LDFLAGS) -o $@ $^ $(LLIBS)
 
 test-x509: test-x509.o $(LIBS)
 	$(LDO) $(LDFLAGS) -o $@ $< $(LLIBS)