diff --git a/core/definitions.mk b/core/definitions.mk
index 3f8ab88..9b3a03d 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1589,7 +1589,7 @@
   if [ "$(3)" == "yaffs" ]; then \
     reservedblocks=5; \
   else \
-    reselvedblocks=0; \
+    reservedblocks=0; \
   fi; \
   twoblocks=$$((img_blocksize * 2)); \
   onepct=$$((((($(2) / 100) - 1) / img_blocksize + 1) * img_blocksize)); \