diff --git a/signing-server/src/test/kotlin/com/r3/corda/signing/configuration/ConfigurationTest.kt b/signing-server/src/test/kotlin/com/r3/corda/signing/configuration/ConfigurationTest.kt
index 979033a086..385049b23b 100644
--- a/signing-server/src/test/kotlin/com/r3/corda/signing/configuration/ConfigurationTest.kt
+++ b/signing-server/src/test/kotlin/com/r3/corda/signing/configuration/ConfigurationTest.kt
@@ -8,8 +8,8 @@ import kotlin.test.assertEquals
 import kotlin.test.assertFailsWith
 
 class ConfigurationTest {
-    private val validConfigPath = File(javaClass.getResource("/signing_service.conf").path).absolutePath
-    private val invalidConfigPath = File(javaClass.getResource("/signing_service_fail.conf").path).absolutePath
+    private val validConfigPath = File(java.net.URLDecoder.decode(javaClass.getResource("/signing_service.conf").path, "UTF-8")).absolutePath
+    private val invalidConfigPath = File(java.net.URLDecoder.decode(javaClass.getResource("/signing_service_fail.conf").path, "UTF-8")).absolutePath
 
     @Test
     fun `authMode is parsed correctly`() {