diff --git a/Makefile b/Makefile
index f535aed..dc0c2ba 100644
--- a/Makefile
+++ b/Makefile
@@ -41,7 +41,7 @@ TMPDIR ?= /tmp
### The compiler options:
export CFLAGS = $(call PKGCFG,cflags)
-export CXXFLAGS = $(call PKGCFG,cxxflags)
+export CXXFLAGS = -std=c++14 $(call PKGCFG,cxxflags)
### The version number of VDR's plugin API: