diff --git a/src/Makefile.am b/src/Makefile.am
index aab92081a..38968a4b8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -47,6 +47,7 @@ libaudacity_la_SOURCES = \
 	$(NULL)
 
 audacity_CPPFLAGS = \
+	-std=c++11 \
 	-Wno-deprecated-declarations \
 	-D__STDC_CONSTANT_MACROS \
 	-DLIBDIR=\"$(libdir)\" \