diff --git a/ex02/include/uart.h b/ex02/include/uart.h
index ed6eb55..f775645 100644
--- a/ex02/include/uart.h
+++ b/ex02/include/uart.h
@@ -12,6 +12,9 @@ void uart_send_u8(uint8_t val);
 void uart_send_u16(uint16_t val);
 void uart_send_u32(uint32_t val);
 
+
+void uart_send_i16(int16_t val);
+
 void uart_send_u8_hex(uint8_t val);
 void uart_send_u16_hex(uint16_t val);
 
diff --git a/ex02/src/main.c b/ex02/src/main.c
index af73b64..b93ab7b 100644
--- a/ex02/src/main.c
+++ b/ex02/src/main.c
@@ -42,6 +42,7 @@ typedef struct command {
 		union cmd_type {
 				uint32_t u32;
 				uint16_t u16;
+				int16_t	 i16;
 				char	 c32[32];
 		} args;
 } command;
@@ -63,7 +64,7 @@ typedef struct node {
 		char	 magic[3];	// RED
 		char	 tag[33];	// BLUE
 		uint32_t id;		// GREEN
-		uint16_t priority;	// YELLOW
+		int16_t	 priority;	// YELLOW
 		uint16_t crc;		// PURPLE
 } node;
 
@@ -217,8 +218,11 @@ bool parse_command(char* str, command* cmd) {
 			return uart_sendstring("SET_PRIO failed space \r\n"), true;
 		while (str[i] == ' ')
 			i++;
-		uint16_t value = 0;
-		bool	 seen  = false;
+		int32_t value = 0;
+		bool	seen  = false;
+		bool	neg	  = false;
+		if (str[i] == '-')
+			(neg = true, i++);
 		for (; (str[i] >= '0' && str[i] <= '9'); i++) {
 			seen   = true;
 			// overflow ? what is that ?!
@@ -233,7 +237,7 @@ bool parse_command(char* str, command* cmd) {
 		}
 
 		cmd->ty		  = SET_PRIO;
-		cmd->args.u16 = value;
+		cmd->args.i16 = neg ? (int16_t)-value : (int16_t)value;
 		return false;
 	}
 	CMD_CHECK(str, "SET_TAG") {
@@ -469,7 +473,7 @@ int main(void) {
 
 				uart_sendstring("Integrity check Good\r\n");
 				uart_sendstring("ID:       "), uart_send_u32(node.id), uart_sendstring("\r\n");
-				uart_sendstring("Priority: "), uart_send_u16(node.priority),
+				uart_sendstring("Priority: "), uart_send_i16(node.priority),
 					uart_sendstring("\r\n");
 				uart_sendstring("TAG:      \""), uart_sendstring(c), uart_sendstring("\"\r\n");
 				uart_sendstring("SLOT:     "), uart_send_u8(current_slot), uart_sendstring("\r\n");
@@ -486,7 +490,7 @@ int main(void) {
 			case SET_PRIO: {
 				if (!read_node(current_slot, &node))
 					init_default_node(&node);
-				node.priority = cmd.args.u16;
+				node.priority = cmd.args.i16;
 				node_set_crc(&node);
 				write_node_reallocating(&current_slot, &node);
 				break;
diff --git a/ex02/src/uart.c b/ex02/src/uart.c
index 079a743..bb9f1b1 100644
--- a/ex02/src/uart.c
+++ b/ex02/src/uart.c
@@ -88,6 +88,18 @@ void uart_send_u16(uint16_t val) {
 	uart_sendstring(buf);
 }
 
+void uart_send_i16(int16_t val) {
+	if (val == 0)
+		return uart_tx('0');
+	if (val == -32768)
+		return uart_sendstring("-32768");
+	if (val < 0) {
+		uart_tx('-');
+		val = -val;
+	}
+	uart_send_u16(val);
+}
+
 void uart_send_u32(uint32_t val) {
 	if (val == 0)
 		return uart_tx('0');