2 files changed, 7 insertions, 7 deletions
diff --git a/ext/json/ext/generator.c b/ext/json/ext/generator.c
index 05e0f7d..555fcce 100644
--- a/ext/json/ext/generator.c
+++ b/ext/json/ext/generator.c
@@ -367,10 +367,10 @@ static void freverse(char *start, char *end)
     }
 }
 
-static int fitoa(int number, char *buf)
+static int fltoa(long number, char *buf)
 {
 	static char digits[] = "0123456789";
-	int sign = number;
+	long sign = number;
 	char* tmp = buf;
 
 	if (sign < 0) number = -number;
@@ -380,10 +380,10 @@ static int fitoa(int number, char *buf)
     return tmp - buf;
 }
 
-static void fbuffer_append_integer(FBuffer *fb, int number)
+static void fbuffer_append_long(FBuffer *fb, long number)
 {
-    char buf[12];
-    int len = fitoa(number, buf);
+    char buf[20];
+    int len = fltoa(number, buf);
     fbuffer_append(fb, buf, len);
 }
 
@@ -841,7 +841,7 @@ static void generate_json(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *s
             fbuffer_append(buffer, "true", 4);
             break;
         case T_FIXNUM:
-            fbuffer_append_integer(buffer, FIX2INT(obj));
+            fbuffer_append_long(buffer, FIX2LONG(obj));
             break;
         case T_BIGNUM:
             tmp = rb_funcall(obj, i_to_s, 0);
diff --git a/ext/json/ext/generator.h b/ext/json/ext/generator.h
index 72d7c8a..37240a9 100644
--- a/ext/json/ext/generator.h
+++ b/ext/json/ext/generator.h
@@ -70,7 +70,7 @@ static void fbuffer_free(FBuffer *fb);
 static void fbuffer_free_only_buffer(FBuffer *fb);
 static void fbuffer_clear(FBuffer *fb);
 static void fbuffer_append(FBuffer *fb, const char *newstr, unsigned int len);
-static void fbuffer_append_integer(FBuffer *fb, int number);
+static void fbuffer_append_long(FBuffer *fb, long number);
 static void fbuffer_append_char(FBuffer *fb, char newchr);
 static FBuffer *fbuffer_dup(FBuffer *fb);