diff --git a/CHANGELOG.md b/CHANGELOG.md
index deec8aec..77572194 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+## v0.4.6
+
+* [FIX] Customised jacoco test-reporter to support Grails 3.x applications.
+
 ## v0.4.5 [(2018-02-19)](https://github.com/codeclimate/test-reporter/releases/tag/v0.4.5)
 
 * [FIX] Add partial automated support for Heroku CI builds [#305][]
diff --git a/Makefile b/Makefile
index 4af9fc33..23a44dac 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ MAN_FILES = $(wildcard man/*.md)
 MAN_PAGES = $(patsubst man/%.md,man/%,$(MAN_FILES))
 
 PROJECT = github.com/codeclimate/test-reporter
-VERSION ?= 0.4.5
+VERSION ?= 0.4.6
 BUILD_VERSION = $(shell git log -1 --pretty=format:'%H')
 BUILD_TIME = $(shell date +%FT%T%z)
 LDFLAGS = -ldflags "-X $(PROJECT)/version.Version=${VERSION} -X $(PROJECT)/version.BuildVersion=${BUILD_VERSION} -X $(PROJECT)/version.BuildTime=${BUILD_TIME}"
diff --git a/formatters/jacoco/jacoco.go b/formatters/jacoco/jacoco.go
index bf9c2932..8220e382 100644
--- a/formatters/jacoco/jacoco.go
+++ b/formatters/jacoco/jacoco.go
@@ -2,7 +2,6 @@ package jacoco
 
 import (
 	"encoding/xml"
-	"fmt"
 	"os"
 	"strings"
 
@@ -10,6 +9,8 @@ import (
 	"github.com/codeclimate/test-reporter/env"
 	"github.com/codeclimate/test-reporter/formatters"
 	"github.com/pkg/errors"
+	"path/filepath"
+	"fmt"
 )
 
 var searchPaths = []string{"jacoco.xml"}
@@ -52,8 +53,25 @@ func (r Formatter) Format() (formatters.Report, error) {
 	for _, xmlPackage := range xmlJacoco.Packages {
 		for _, xmlSF := range xmlPackage.SourceFile {
 			num := 1
-			filepath := fmt.Sprintf("%s/%s", xmlPackage.Name, xmlSF.Name)
-			sf, err := formatters.NewSourceFile(filepath, gitHead)
+			defaultFilepath := fmt.Sprintf("%s/%s", xmlPackage.Name, xmlSF.Name)
+			filePathPatternForGrailsAppDir := "./grails-app/*/" + xmlPackage.Name + "/" + xmlSF.Name
+			filePathPatternForSrcDir := "./src/main/*/" + xmlPackage.Name + "/" + xmlSF.Name
+
+			logrus.Debugf("Searching for source file: " + xmlSF.Name  + " with search pattern: " +
+				filePathPatternForGrailsAppDir)
+			actualFilePath := getActualFilePath(filePathPatternForGrailsAppDir)
+
+			if (actualFilePath == "") {
+				logrus.Debugf("Searching for source file: " + xmlSF.Name  + " with search pattern: " +
+					filePathPatternForSrcDir)
+				actualFilePath = getActualFilePath(filePathPatternForSrcDir)
+
+				if (actualFilePath == "") {
+					actualFilePath = defaultFilepath
+				}
+			}
+
+			sf, err := formatters.NewSourceFile(actualFilePath, gitHead)
 			if err != nil {
 				return rep, errors.WithStack(err)
 			}
@@ -75,3 +93,14 @@ func (r Formatter) Format() (formatters.Report, error) {
 
 	return rep, nil
 }
+
+func getActualFilePath(filePathPattern string) (string) {
+	filePaths, _ := filepath.Glob(filePathPattern)
+	var numberOfMatches = len(filePaths)
+
+	if (numberOfMatches != 1) {
+		return ""
+	}
+
+	return filePaths[0]
+}