diff --git a/Ext4.h b/Ext4.h
index 54fbec3..c768f5a 100644
--- a/Ext4.h
+++ b/Ext4.h
@@ -24,6 +24,7 @@
     static int doMount(const char *fsPath, const char *mountPoint, bool ro, bool remount,
             bool executable);
     static int format(const char *fsPath, unsigned int numSectors, const char *mountpoint);
+    static int resize(const char *fsPath, unsigned int numSectors);
 };
 
 #endif