diff --git a/cmarkdown.c b/cmarkdown.c
index 9891ad4..f624593 100644
--- a/cmarkdown.c
+++ b/cmarkdown.c
@@ -130,6 +130,7 @@ doamp(const char *begin, const char *end, int newblock) {
 	fputs("&",stdout);
 	return 1;
 }
+
 unsigned int
 dohtml(const char *begin, const char *end, int newblock) {
 	const char *p, *tag, *tagend;
@@ -156,6 +157,7 @@ dohtml(const char *begin, const char *end, int newblock) {
 	}
 	return 0;
 }
+
 unsigned int
 dolineprefix(const char *begin, const char *end, int newblock) {
 	unsigned int i, j, l;
@@ -164,7 +166,7 @@ dolineprefix(const char *begin, const char *end, int newblock) {
 
 	if(!newblock)
 		return 0;
-		p = begin;
+	p = begin;
 	for(i = 0; i < LENGTH(lineprefix); i++) {
 		l = strlen(lineprefix[i].search);
 		if(end - p < l)
@@ -174,7 +176,7 @@ dolineprefix(const char *begin, const char *end, int newblock) {
 		if(!(buffer = malloc(BUFFERSIZE)))
 			eprint("Malloc failed.");
 		buffer[0] = '\0';
-		puts(lineprefix[i].before);
+		fputs(lineprefix[i].before,stdout);
 		for(j = 0, p += l; p != end; p++, j++) {
 			ADDC(buffer,j) = *p;
 			if(*p == '\n') {
diff --git a/config.mk b/config.mk
index 577b368..f321725 100644
--- a/config.mk
+++ b/config.mk
@@ -10,7 +10,7 @@ INCS = -I. -I/usr/include
 LIBS = -L/usr/lib
 
 # flags
-CFLAGS = -Os -Wall -Werror ${INCS} -DVERSION=\"${VERSION}\"
+CFLAGS = -Os -Wall -Werror -ansi ${INCS} -DVERSION=\"${VERSION}\"
 LDFLAGS = ${LIBS}
 
 # compiler