diff --git a/include/gargoyle/codex.h b/include/gargoyle/codex.h
index cc3eba2..cb0ec3a 100644
--- a/include/gargoyle/codex.h
+++ b/include/gargoyle/codex.h
@@ -7,8 +7,9 @@ typedef uint8_t gargoyle_opt_type;
 
 static const gargoyle_opt_type GARGOYLE_TYPE_BOOL = 1 << 0;
 static const gargoyle_opt_type GARGOYLE_TYPE_UINT = 1 << 1;
-static const gargoyle_opt_type GARGOYLE_TYPE_DBLE = 1 << 2;
-static const gargoyle_opt_type GARGOYLE_TYPE_ROPE = 1 << 3;
+static const gargoyle_opt_type GARGOYLE_TYPE_SINT = 1 << 2;
+static const gargoyle_opt_type GARGOYLE_TYPE_DBLE = 1 << 3;
+static const gargoyle_opt_type GARGOYLE_TYPE_ROPE = 1 << 4;
 
 typedef uint8_t gargoyle_err_type;
 
@@ -16,8 +17,9 @@ static const gargoyle_err_type GARGOYLE_ERR_SUCCESS = 1 << 0;
 static const gargoyle_err_type GARGOYLE_ERR_UNKNOWN_OPT = 1 << 1;
 static const gargoyle_err_type GARGOYLE_ERR_VALUE_REQUIRED = 1 << 2;
 static const gargoyle_err_type GARGOYLE_ERR_INVALID_UINT = 1 << 3;
-static const gargoyle_err_type GARGOYLE_ERR_INVALID_DBLE = 1 << 4;
-static const gargoyle_err_type GARGOYLE_ERR_UNKNOWN_TYPE = 1 << 5;
+static const gargoyle_err_type GARGOYLE_ERR_INVALID_SINT = 1 << 4;
+static const gargoyle_err_type GARGOYLE_ERR_INVALID_DBLE = 1 << 5;
+static const gargoyle_err_type GARGOYLE_ERR_UNKNOWN_TYPE = 1 << 6;
 
 typedef uint8_t gargoyle_flag_type;
 
diff --git a/src/scribe.c b/src/scribe.c
index a10502e..1c55aa4 100644
--- a/src/scribe.c
+++ b/src/scribe.c
@@ -21,6 +21,14 @@ uint8_t gargoyle_from_rope(struct gargoyle_opt *opt, const char *brand_val, garg
     if(*end) {
       return GARGOYLE_ERR_INVALID_UINT;
     }
+  } else if(opt->type & GARGOYLE_TYPE_SINT) {
+    char *end = NULL;
+    int64_t *val = opt->val;
+    *val = strtoll(brand_val, &end, 10);
+
+    if(*end) {
+      return GARGOYLE_ERR_INVALID_SINT;
+    }
   } else if(opt->type & GARGOYLE_TYPE_DBLE) {
     char *end = NULL;
     double *val = opt->val;