diff --git a/anda/tools/gradle/gradle.spec b/anda/tools/gradle/gradle.spec
index 4e0dad3a05..da6de6ee73 100644
--- a/anda/tools/gradle/gradle.spec
+++ b/anda/tools/gradle/gradle.spec
@@ -42,8 +42,7 @@ sed -i '/JvmVendorSpec.ADOPTIUM/d' \
 	subprojects/docs/src/snippets/java/toolchain-filters/kotlin/build.gradle.kts \
 	build-logic-commons/commons/build.gradle.kts
 # inhibit automatic download of binary gradle
-x=%{SOURCE1}
-sed -i "s#distributionUrl=.*#distributionUrl=file\:$x#" \
+sed -i "s#distributionUrl=.*#distributionUrl=file\:%{SOURCE0}#" \
 	gradle/wrapper/gradle-wrapper.properties