diff --git a/Makefile.am b/Makefile.am
index bc26d052..d5f31a2d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -588,8 +588,7 @@ EXTRA_DIST = src/genbuiltin src/iwd.service.in src/net.connman.iwd.service \
 
 AM_CFLAGS = $(ell_cflags) -fvisibility=hidden \
 				-DUNITDIR=\""$(top_srcdir)/unit/"\" \
-				-DCERTDIR=\""$(top_builddir)/unit/"\" \
-				-DJSMN_PARENT_LINKS -DJSMN_STRICT
+				-DCERTDIR=\""$(top_builddir)/unit/"\"
 
 if MAINTAINER_MODE
 AM_CFLAGS += -DHAVE_PKCS8_SUPPORT
diff --git a/src/json.c b/src/json.c
index 4cd404ab..a16f6cf4 100644
--- a/src/json.c
+++ b/src/json.c
@@ -30,6 +30,9 @@
 
 #include "src/json.h"
 
+#define JSMN_STATIC
+#define JSMN_STRICT
+#define JSMN_PARENT_LINKS
 #include "shared/jsmn.h"
 
 /* Max number of tokens supported. Increase if larger objects are expected */