diff --git a/stratosphere/ncm/source/ncm_fs.cpp b/stratosphere/ncm/source/ncm_fs.cpp
index 1d1a38e20..3fecec315 100644
--- a/stratosphere/ncm/source/ncm_fs.cpp
+++ b/stratosphere/ncm/source/ncm_fs.cpp
@@ -272,7 +272,7 @@ namespace sts::ncm {
             std::abort();
         }
 
-        snprintf(out_common_path, out_len, "%s:/%s", common_mount_name, translated_path);
+        snprintf(out_common_path, out_len, "%s:%s", common_mount_name, translated_path);
         return ResultSuccess;
     }
 
diff --git a/stratosphere/ncm/source/ncm_utils.cpp b/stratosphere/ncm/source/ncm_utils.cpp
index 8be26bf71..a490f6a0f 100644
--- a/stratosphere/ncm/source/ncm_utils.cpp
+++ b/stratosphere/ncm/source/ncm_utils.cpp
@@ -20,13 +20,13 @@ namespace sts::ncm {
 
     void GetStringFromContentId(char* out, ContentId content_id) {
         for (size_t i = 0; i < sizeof(ContentId); i++) {
-            snprintf(out+i, 3, "%02x", content_id.uuid[i]);
+            snprintf(out+i*2, 3, "%02x", content_id.uuid[i]);
         }
     }
 
     void GetStringFromPlaceHolderId(char* out, PlaceHolderId placeholder_id) {
         for (size_t i = 0; i < sizeof(PlaceHolderId); i++) {
-            snprintf(out+i, 3, "%02x", placeholder_id.uuid[i]);
+            snprintf(out+i*2, 3, "%02x", placeholder_id.uuid[i]);
         }
     }