diff --git a/roots.c b/roots.c
index 9a43bb4..ea97c7a 100644
--- a/roots.c
+++ b/roots.c
@@ -65,11 +65,11 @@ static int parse_options(char* options, Volume* volume) {
             volume->length = strtoll(option+7, NULL, 10);
         } else if (strncmp(option, "fstype2=", 8) == 0) {
             volume->fs_type2 = volume->fs_type;
-            volume->fs_type = strdup(option);
+            volume->fs_type = strdup(option + 8);
         } else if (strncmp(option, "fs_options=", 11) == 0) {
-            volume->fs_options = strdup(option);
+            volume->fs_options = strdup(option + 11);
         } else if (strncmp(option, "fs_options2=", 12) == 0) {
-            volume->fs_options2 = strdup(option);
+            volume->fs_options2 = strdup(option + 12);
         } else {
             LOGE("bad option \"%s\"\n", option);
             return -1;