diff --git a/libs/string.h b/libs/string.h
index bd24e24..c6b4779 100644
--- a/libs/string.h
+++ b/libs/string.h
@@ -42,12 +42,12 @@ char* int2Str(int* num) {
     return buffer;
 }
 char* float2Str(float* num) {
-    char* buffer = malloc(12);
+    char* buffer = malloc(41);
     sprintf(buffer, "%f", *num);
     return buffer;
 }
 char* double2Str(double* num) {
-    char* buffer = malloc(12);
+    char* buffer = malloc(311);
     sprintf(buffer, "%f", *num);
     return buffer;
 }