diff --git a/libft b/libft
index 2be81d5..f86c2cf 160000
--- a/libft
+++ b/libft
@@ -1 +1 @@
-Subproject commit 2be81d563077fff32c96a82a5748b9de1ff89069
+Subproject commit f86c2cf5cb805cb2bf863b27d42169c5b1f0ccd2
diff --git a/src/computorv1.c b/src/computorv1.c
index 1e64621..534d6e2 100644
--- a/src/computorv1.c
+++ b/src/computorv1.c
@@ -1,6 +1,7 @@
 #include "computorv1.h"
 #include "lexer.h"
 #include "errors.h"
+#include <stdio.h> // tmp for float debug
 
 int main(int ac, char **av)
 {
@@ -55,7 +56,7 @@ int main(int ac, char **av)
 
         if (tokens[i].type == TOKEN_NUMBER)
         {
-            ft_printf("%d\n", i, tokens[i].num_value);
+            printf("%f\n", tokens[i].num_value);
         }
         else
         {
diff --git a/src/lexer.c b/src/lexer.c
index f15a80b..1517763 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -23,7 +23,7 @@ static bool token_is_variable(const char *input, int input_pos, int *token_size)
 }
 
 // number can be double "123.456"
-static bool token_is_number(const char *input, int input_pos, int *token_size)
+static bool token_is_number(const char *input, int input_pos, int *token_size, int *float_precision)
 {
     int number_size;
     int max_number_size;
@@ -124,9 +124,11 @@ int lexerize(const char *input, token tokens[MAX_TOKENS])
     int token_count;
     int input_pos;
     int token_size;
+    int float_precision;
 
     token_count = 0;
     input_pos = 0;
+    float_precision = 0;
     while (input[input_pos])
     {
         token_size = 0;
@@ -142,10 +144,10 @@ int lexerize(const char *input, token tokens[MAX_TOKENS])
             tokens[token_count].type = TOKEN_VARIABLE;
             tokens[token_count].var_value = 'x';
         }
-        else if (token_is_number(input, input_pos, &token_size))
+        else if (token_is_number(input, input_pos, &token_size, &float_precision))
         {
             tokens[token_count].type = TOKEN_NUMBER;
-            tokens[token_count].num_value = ft_atoi(&input[input_pos]);
+            tokens[token_count].num_value = ft_atof(&input[input_pos]);
         }
         else if (token_is_power(input, input_pos, &token_size))
         {