diff --git a/jdepend.spec b/jdepend.spec
index acccf5d..65d120f 100644
--- a/jdepend.spec
+++ b/jdepend.spec
@@ -47,6 +47,11 @@ rm -rf $RPM_BUILD_ROOT
 find . -name "*.jar" -exec rm -f {} \;
 # fix strange permissions
 find . -type d -exec chmod 755 {} \;
+# delete stuff that doesn't work with libgcj (#130006).
+if java -version 2>&1 | grep -q "gcj"; then
+    rm -f src/jdepend/swingui/DependTree.java
+    rm -f src/jdepend/swingui/JDepend.java
+fi
 
 %build
 ant jar javadoc