diff --git a/rxjava1-finder/build.gradle b/rxjava1-finder/build.gradle
index 843a861..c60758b 100644
--- a/rxjava1-finder/build.gradle
+++ b/rxjava1-finder/build.gradle
@@ -22,6 +22,9 @@ jar {
 }
 
 verifyInstrumentation {
-    File outputFile = file("build/verifier/passes.txt")
-    outputFile << "No verify is needed"
+    def outputFile = file("build/verifier/passes.txt")
+    if(!outputFile.parentFile.exists()) {
+        outputFile.parentFile.mkdirs()
+    }
+    outputFile.text = "No verify is needed"
 }
\ No newline at end of file
diff --git a/rxjava2-finder/build.gradle b/rxjava2-finder/build.gradle
index 6c6acd9..86859c2 100644
--- a/rxjava2-finder/build.gradle
+++ b/rxjava2-finder/build.gradle
@@ -22,6 +22,9 @@ jar {
 }
 
 verifyInstrumentation {
-    File outputFile = file("build/verifier/passes.txt")
-    outputFile << "No verify is needed"
+    def outputFile = file("build/verifier/passes.txt")
+    if(!outputFile.parentFile.exists()) {
+        outputFile.parentFile.mkdirs()
+    }
+    outputFile.text = "No verify is needed"
 }
\ No newline at end of file
diff --git a/rxjava3-finder/build.gradle b/rxjava3-finder/build.gradle
index f801cb0..b345cd6 100644
--- a/rxjava3-finder/build.gradle
+++ b/rxjava3-finder/build.gradle
@@ -22,6 +22,9 @@ jar {
 }
 
 verifyInstrumentation {
-    File outputFile = file("build/verifier/passes.txt")
-    outputFile << "No verify is needed"
+    def outputFile = file("build/verifier/passes.txt")
+    if(!outputFile.parentFile.exists()) {
+        outputFile.parentFile.mkdirs()
+    }
+    outputFile.text = "No verify is needed"
 }
\ No newline at end of file