diff --git a/opa-fmgui.spec b/opa-fmgui.spec
index 99d0b71..8a00c7f 100644
--- a/opa-fmgui.spec
+++ b/opa-fmgui.spec
@@ -22,6 +22,7 @@
 %define appfolder opa-fmgui
 %define appjar opa-fmgui.jar
 %define _binary_payload w9.gzdio
+%define gradle_version	2.9
 
 Name:           opa-fmgui
 Version:        10.1.0.0
@@ -67,7 +68,7 @@ Source33:       swingx-mavensupport-1.6.5.jar
 Source34:       swingx-painters-1.6.5.jar
 Source35:       swingx-plaf-1.6.5.jar
 Source36:       swingx-testsupport-1.6.5.jar
-Source37:       gradle-2.9-bin.zip
+Source37:       gradle-%{gradle_version}-bin.zip
 Source38:       javax.mail-1.5.2.jar
 
 Patch1:         gradle-use_local_repo.patch
@@ -98,10 +99,10 @@ script fmgui.
 %patch5 -p1
 
 %build
-(cd %{_tmppath}; unzip $RPM_SOURCE_DIR/gradle-2.9-bin.zip)
+(cd %{_tmppath}; unzip $RPM_SOURCE_DIR/gradle-%{gradle_version}-bin.zip)
 GRADLE_LIB_DIR=$RPM_SOURCE_DIR
 export GRADLE_LIB_DIR
-%{_tmppath}/gradle-2.9/bin/gradle copyDeps build --info
+%{_tmppath}/gradle-%{gradle_version}/bin/gradle copyDeps build --info
 
 %install
 mkdir -p %{buildroot}%{_javadir}/%{appfolder}