fix filename.
diff --git a/releng/build-scripts/build/otdt_prerequisites.sh b/releng/build-scripts/build/otdt_prerequisites.sh
index 0232b20..49267d2 100644
--- a/releng/build-scripts/build/otdt_prerequisites.sh
+++ b/releng/build-scripts/build/otdt_prerequisites.sh
@@ -48,7 +48,7 @@
 DROP=${BASEDIR}/drops/S-3.6RC1-201005131500
 
 # EXPORT: archive file of the base eclipse SDK build:
-ECLIPSE_SDK_TGZ=${DROP}/eclipse-SDK-${EVERSION}-linux-gtk${ARCH}.tar.gz
+ECLIPSE_SDK_TGZ=${DROP}/eclipse-SDK-${EVERSION}-linux-gtk-${ARCH}.tar.gz
 
 # EXPORT: archive file of the eclipse test framework:
 ECLIPSE_TESTLIB_ZIP=${DROP}/eclipse-test-framework-${EVERSION}.zip