diff --git a/bin/tests/system/inline/ns3/sign.sh b/bin/tests/system/inline/ns3/sign.sh
index 96a4ed431f..8eb17e94c2 100644
--- a/bin/tests/system/inline/ns3/sign.sh
+++ b/bin/tests/system/inline/ns3/sign.sh
@@ -109,6 +109,8 @@ then
 	sh ../../ecdsa/prereq.sh 2> /dev/null || continue
 fi
 
+test $alg = DSA -a ! -f /dev/random -a ! -f /dev/urandom && continue
+
 k1=`$KEYGEN -q -r $RANDFILE -a $alg -b 1024 -n zone -f KSK $zone`
 k2=`$KEYGEN -q -r $RANDFILE -a $alg -b 1024 -n zone $zone`
 k3=`$KEYGEN -q -r $RANDFILE -a $alg -b 1024 -n zone $zone`
diff --git a/bin/tests/system/inline/tests.sh b/bin/tests/system/inline/tests.sh
index dde216950f..7aec281884 100644
--- a/bin/tests/system/inline/tests.sh
+++ b/bin/tests/system/inline/tests.sh
@@ -823,6 +823,7 @@ do
    then
 	sh ../ecdsa/prereq.sh 2>/dev/null || continue;
    fi
+   test $alg = 3 -a ! -f /dev/random -a ! -f /dev/random && continue
 
    dnskeys=`grep "IN.DNSKEY.25[67] [0-9]* $alg " dig.out.ns3.test$n | wc -l`
    rrsigs=`grep "RRSIG.DNSKEY $alg " dig.out.ns3.test$n | wc -l`