diff --git a/build/make/makebin.linux b/build/make/makebin.linux
index b0659fc8c..6511f29ea 100644
--- a/build/make/makebin.linux
+++ b/build/make/makebin.linux
@@ -7,7 +7,7 @@
 # Linux (GCC)
 #
 
-CFLAGS+=-fPIC -Wall -pedantic -O3 -D_GNU_SOURCE -D_LINUX 
+CFLAGS+=-std=gnu17 -fPIC -Wall -pedantic -O3 -D_GNU_SOURCE -D_LINUX
 
 ifdef XPATH
   ifdef XLIB
diff --git a/build/make/makedlm.linux b/build/make/makedlm.linux
index a490d44d2..18f678b8c 100644
--- a/build/make/makedlm.linux
+++ b/build/make/makedlm.linux
@@ -7,7 +7,7 @@
 # Linux (GCC)
 #
 
-CFLAGS = -fPIC -Wall -pedantic -O3 \
+CFLAGS = -std=gnu17 -fPIC -Wall -pedantic -O3 \
          -D_GNU_SOURCE -D_LINUX $(INCLUDE)
 
 LFLAGS = -shared -lm -lz 
diff --git a/build/make/makelib.linux b/build/make/makelib.linux
index 3f364424b..da7a85e67 100644
--- a/build/make/makelib.linux
+++ b/build/make/makelib.linux
@@ -7,7 +7,7 @@
 # Linux (GCC)
 #
 
-CFLAGS += -fPIC -Wall -pedantic -O3  \
+CFLAGS += -std=gnu17 -fPIC -Wall -pedantic -O3  \
          -D_GNU_SOURCE -D_LINUX $(INCLUDE)
 
 LFLAGS += -shared -lm -lz