diff --git a/src/build.ts b/src/build.ts
index d81307cf..101021ac 100644
--- a/src/build.ts
+++ b/src/build.ts
@@ -137,7 +137,7 @@ interface BuildDockerImageParams {
 
 async function buildFileResource(plan: BuildPlan): Promise<void> {
   core.startGroup(`Build resource {plan.name}`)
-  await exec.exec('./build-resource.sh', [plan.name, plan.source_file], {
+  await exec.exec(`./build-${plan.name}.sh`, [plan.source_file], {
     cwd: plan.source_directory
   })
   core.endGroup()
diff --git a/tests/workflows/integration/test-upload-charm/build-resource.sh b/tests/workflows/integration/test-upload-charm/build-test-file.sh
similarity index 71%
rename from tests/workflows/integration/test-upload-charm/build-resource.sh
rename to tests/workflows/integration/test-upload-charm/build-test-file.sh
index d1877181..f59f8046 100755
--- a/tests/workflows/integration/test-upload-charm/build-resource.sh
+++ b/tests/workflows/integration/test-upload-charm/build-test-file.sh
@@ -3,11 +3,10 @@
 set -eu
 
 function build_resource() {
-    local RESOURCE=$1
-    local RESOURCE_OUTPUT=$2
+    local RESOURCE_OUTPUT=$1
 
     case $RESOURCE in
-        test-file)
+        test-file.txt)
             touch "$RESOURCE_OUTPUT"
             ;;
         *)
@@ -17,4 +16,4 @@ function build_resource() {
     esac
 }
 
-build_resource "$1" "$2"
\ No newline at end of file
+build_resource "$1"
\ No newline at end of file