diff --git a/perf/dacapo/build.xml b/perf/dacapo/build.xml
index 71e04f10a6..79affd443d 100644
--- a/perf/dacapo/build.xml
+++ b/perf/dacapo/build.xml
@@ -34,7 +34,7 @@
 				<echo message="${FILE_NAME} exists. Hence, not downloading it." />
 			</then>
 			<else>
-			<var name="curl_options" value="-Lks https://sourceforge.net/projects/dacapobench/files/latest/download -o dacapo.jar"/>
+			<var name="curl_options" value="-Lks -C - https://sourceforge.net/projects/dacapobench/files/latest/download -o dacapo.jar"/>
 			<retry retrycount="3">
 				<sequential>
 					<echo message="curl ${curl_options}" />
diff --git a/perf/renaissance/build.xml b/perf/renaissance/build.xml
index 4361f74d13..9a1d236408 100644
--- a/perf/renaissance/build.xml
+++ b/perf/renaissance/build.xml
@@ -34,7 +34,7 @@
 		        <echo message="${FILE_NAME} exists. Hence, not downloading it." />
 		    </then>
 		    <else>
-				<var name="curl_options" value="-Lks https://github.com/renaissance-benchmarks/renaissance/releases/download/v0.14.0/renaissance-mit-0.14.0.jar -o ${FILE_NAME}"/>
+				<var name="curl_options" value="-Lks -C - https://github.com/renaissance-benchmarks/renaissance/releases/download/v0.14.0/renaissance-mit-0.14.0.jar -o ${FILE_NAME}"/>
 				<retry retrycount="3">
 		 			<sequential>
 						<echo message="curl ${curl_options}" />