diff --git a/Makefile b/Makefile
index 0c8178c..38ffa84 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 PROGNAME=dump1090
 
-CC=gcc -std=c1x
+CC=gcc
 CPPFLAGS += -DMODES_DUMP1090_VERSION=\"$(DUMP1090_VERSION)\" -DMODES_DUMP1090_VARIANT=\"dump1090-fa\"
 
 ifneq ($(RTLSDR_PREFIX),"")
@@ -12,7 +12,8 @@ ifneq ($(HTMLPATH),"")
 	CPPFLAGS += -DHTMLPATH=\"$(HTMLPATH)\"
 endif
 
-CFLAGS += -O2 -g -Wall -Werror -W -D_DEFAULT_SOURCE
+DIALECT = -std=c11
+CFLAGS += $(DIALECT) -O2 -g -Wall -Werror -W -D_DEFAULT_SOURCE
 LIBS = -lpthread -lm -lrt
 
 ifeq ($(STATIC), yes)
diff --git a/debian-wheezy/rules b/debian-wheezy/rules
index 573eb30..76f0fcd 100755
--- a/debian-wheezy/rules
+++ b/debian-wheezy/rules
@@ -22,7 +22,7 @@ install_rtlsdr:
 	cd rtl-sdr-build && cmake ../rtl-sdr -DCMAKE_INSTALL_PREFIX=./install && make install
 
 override_dh_auto_build: install_rtlsdr
-	dh_auto_build -- HTMLPATH=/usr/share/$(SRCNAME)/html DUMP1090_VERSION=$(DUMP1090_VERSION) STATIC=yes RTLSDR_PREFIX=rtl-sdr-build/install
+	dh_auto_build -- DIALECT=-std=gnu1x HTMLPATH=/usr/share/$(SRCNAME)/html DUMP1090_VERSION=$(DUMP1090_VERSION) STATIC=yes RTLSDR_PREFIX=rtl-sdr-build/install
 
 override_dh_install:
 	dh_install