diff --git a/samples/net/http_server/prj_qemu_x86.conf b/samples/net/http_server/prj_qemu_x86.conf
index f98dac92b1b..89ba3ee7505 100644
--- a/samples/net/http_server/prj_qemu_x86.conf
+++ b/samples/net/http_server/prj_qemu_x86.conf
@@ -45,3 +45,5 @@ CONFIG_NET_STATISTICS=y
 
 CONFIG_NET_MGMT=y
 CONFIG_NET_MGMT_EVENT=y
+
+CONFIG_RAM_SIZE=280
diff --git a/samples/net/https_client/prj_qemu_x86.conf b/samples/net/https_client/prj_qemu_x86.conf
index 49d72040178..c29a6317343 100644
--- a/samples/net/https_client/prj_qemu_x86.conf
+++ b/samples/net/https_client/prj_qemu_x86.conf
@@ -54,3 +54,5 @@ CONFIG_NET_MGMT_EVENT=y
 # Example DNS servers running in linux using dnsmasq
 CONFIG_DNS_SERVER1="192.0.2.2:5353"
 CONFIG_DNS_SERVER2="[2001:db8::2]:5353"
+
+CONFIG_RAM_SIZE=300