diff --git a/src/org/SHS/SDK.groovy b/src/org/SHS/SDK.groovy
index 52abb03..1675b1b 100644
--- a/src/org/SHS/SDK.groovy
+++ b/src/org/SHS/SDK.groovy
@@ -23,7 +23,7 @@ class SDK {
 		
 		def taglist = steps.sh(script: "cd \"${steps.env.SHSSDK_DIR}\" && ls -1d */", returnStdout: true).trim().split('\n')
         for (tag in taglist) {
-			if (!f.startsWith('v') || !f.endsWith('/')) continue
+			if (!tag.startsWith('v') || !tag.endsWith('/')) continue
 			try {
 				pl._root = steps.readJSON(file: "${steps.env.SHSSDK_DIR}/${tag}/platforms.json")
 				pl.forEach ({ dist, cmake_toolchain ->