diff --git a/package/utils/px5g-standalone/Makefile b/package/utils/px5g-standalone/Makefile
index bd0267693b..38f60c3762 100644
--- a/package/utils/px5g-standalone/Makefile
+++ b/package/utils/px5g-standalone/Makefile
@@ -11,7 +11,6 @@ PKG_NAME:=px5g-standalone
 PKG_RELEASE:=2
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
-PKG_CHECK_FORMAT_SECURITY:=0
 
 include $(INCLUDE_DIR)/package.mk
 
diff --git a/package/utils/px5g-standalone/src/library/x509write.c b/package/utils/px5g-standalone/src/library/x509write.c
index 1091568745..2b0eb71563 100644
--- a/package/utils/px5g-standalone/src/library/x509write.c
+++ b/package/utils/px5g-standalone/src/library/x509write.c
@@ -570,7 +570,7 @@ static int x509write_file(x509_node *node, char *path, int format,
             break;
 
         case X509_OUTPUT_PEM:
-            if (fprintf(ofstream,pem_prolog)<0) {
+            if (fprintf(ofstream, "%s", pem_prolog)<0) {
                 is_err = -1;
                 break;
             }
@@ -589,7 +589,7 @@ static int x509write_file(x509_node *node, char *path, int format,
                 fprintf(ofstream,"%.64s\n",&base_buf[i]);
             }
 
-            if (fprintf(ofstream, pem_epilog)<0) {
+            if (fprintf(ofstream, "%s", pem_epilog)<0) {
                 is_err = -1;
                 break;
             }