diff --git a/com/ncom.c b/com/ncom.c
index 66c3f10..207d67b 100644
--- a/com/ncom.c
+++ b/com/ncom.c
@@ -88,7 +88,7 @@ help(char * exename)
 	exit(EXIT_SUCCESS);
 }
 
-void
+static void
 die(char * str)
 {
 	printf("%s\n", str);
diff --git a/enhance/nhan.c b/enhance/nhan.c
index 283c137..16e0ed6 100644
--- a/enhance/nhan.c
+++ b/enhance/nhan.c
@@ -29,7 +29,9 @@ save_stdin(FILE *f)
 	return f2;
 }
 
-void cap(char string[]){  
+void
+cap(char string[])
+{  
 	int i;
 	int x = strlen(string);
 	for (i=0; i<x-1; i++){
@@ -48,7 +50,7 @@ print_only(FILE *f)
 	}
 }
 
-void
+static void
 enhance(FILE *f, int full_upper)
 {
 	char buffer[BUFFER_SIZE];
@@ -64,13 +66,15 @@ enhance(FILE *f, int full_upper)
 	}
 }
 
-void die(char * str)
+static void
+die(char * str)
 {
 	printf("%s\n", str);
 	exit(EXIT_SUCCESS);
 }
 
-void help(char * exename)
+static void
+help(char * exename)
 {
 	printf( "Nhance - Narthex enhancer %s\n"
 		"By Michael C. Dim. <mk@mcdim.xyz>\n\n"
diff --git a/inc/nin.c b/inc/nin.c
index 1a1030e..44b4c0a 100644
--- a/inc/nin.c
+++ b/inc/nin.c
@@ -55,7 +55,7 @@ help(char * exename)
 	exit(EXIT_SUCCESS);
 }
 
-void
+static void
 die(char * str)
 {
 	printf("%d\n", str);
diff --git a/leet/nleet.c b/leet/nleet.c
index 59697e6..6ec0212 100644
--- a/leet/nleet.c
+++ b/leet/nleet.c
@@ -29,7 +29,7 @@ save_stdin(FILE *f)
 	return f2;
 }
 
-void
+static void
 print_only(FILE *f)
 {
 	char buffer[BUFFER_SIZE];
@@ -38,7 +38,7 @@ print_only(FILE *f)
 	}
 }
 
-void
+static void
 leetify(FILE *f, int full_upper)
 {
 	char buffer[BUFFER_SIZE];