diff --git a/plugins/dynamic-security/Makefile b/plugins/dynamic-security/Makefile
index 810a17ba..9ef728b1 100644
--- a/plugins/dynamic-security/Makefile
+++ b/plugins/dynamic-security/Makefile
@@ -77,10 +77,10 @@ test:
 install: all
 ifeq ($(WITH_CJSON),yes)
 ifeq ($(WITH_TLS),yes)
-	$(INSTALL) -d "${DESTDIR}$(prefix)/lib"
-	$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	$(INSTALL) -d "${DESTDIR}$(libdir)"
+	$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
 endif
 endif
 
 uninstall :
-	-rm -f "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	-rm -f "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
diff --git a/plugins/message-timestamp/Makefile b/plugins/message-timestamp/Makefile
index b78384dc..f76b74cc 100644
--- a/plugins/message-timestamp/Makefile
+++ b/plugins/message-timestamp/Makefile
@@ -20,8 +20,8 @@ test:
 
 install: ${PLUGIN_NAME}.so
 	# Don't install, these are examples only.
-	#$(INSTALL) -d "${DESTDIR}$(prefix)/lib"
-	#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	#$(INSTALL) -d "${DESTDIR}$(libdir)"
+	#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
 
 uninstall :
-	-rm -f "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	-rm -f "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
diff --git a/plugins/payload-modification/Makefile b/plugins/payload-modification/Makefile
index 9511517a..ff3bcfc2 100644
--- a/plugins/payload-modification/Makefile
+++ b/plugins/payload-modification/Makefile
@@ -20,8 +20,8 @@ test:
 
 install: ${PLUGIN_NAME}.so
 	# Don't install, these are examples only.
-	#$(INSTALL) -d "${DESTDIR}$(prefix)/lib"
-	#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	#$(INSTALL) -d "${DESTDIR}$(libdir)"
+	#$(INSTALL) ${STRIP_OPTS} ${PLUGIN_NAME}.so "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"
 
 uninstall :
-	-rm -f "${DESTDIR}${prefix}/lib/${PLUGIN_NAME}.so"
+	-rm -f "${DESTDIR}${libdir}/${PLUGIN_NAME}.so"