diff --git a/util/manibuilder/Dockerfile.anita b/util/manibuilder/Dockerfile.anita
index dd6f4dd2d..f4b1309ce 100644
--- a/util/manibuilder/Dockerfile.anita
+++ b/util/manibuilder/Dockerfile.anita
@@ -3,7 +3,7 @@ FROM debian:stable
 ARG PKG_PATH=http://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD/amd64/7.1/All
 ARG INST_IMG=http://ftp.de.netbsd.org/pub/NetBSD/NetBSD-7.1/amd64/
 ARG DISK_SIZE=1G
-ARG MEM_SIZE=128M
+ARG INSTALL_MEM=128M
 ARG EXTRA_PKG=""
 
 RUN \
@@ -20,11 +20,12 @@ RUN \
 USER mani
 RUN cd && mkdir .ccache && chown mani:mani .ccache && \
 	  anita --sets kern-GENERIC,modules,base,etc,comp \
-		--disk-size ${DISK_SIZE} --memory-size=${MEM_SIZE} \
+		--disk-size ${DISK_SIZE} --memory-size=${INSTALL_MEM} \
 		install ${INST_IMG} && \
 	  rm -rf work-*/download
 
-RUN cd && anita --persist --run \
+ARG RUNTIME_MEM=128M
+RUN cd && anita --persist --memory-size=${RUNTIME_MEM} --run \
 "echo 'dhcpcd'                                   >init && \
  echo 'export PKG_PATH=${PKG_PATH}'             >>init && \
  . ./init && \
@@ -35,7 +36,8 @@ RUN cd && anita --persist --run \
 		boot ${INST_IMG}
 
 RUN cd && dd if=/dev/zero bs=1M count=64 of=cache.img && \
-	  anita --vmm-args '-hdb cache.img' --persist --run \
+	  anita --vmm-args '-hdb cache.img' --persist \
+		--memory-size=${RUNTIME_MEM} --run \
 "if [ \$(uname -m) = i386 -o \$(uname -m) = amd64 ]; then \
      bdev=wd1d; \
  else \
@@ -59,4 +61,5 @@ RUN cd && dd if=/dev/zero bs=1M count=64 of=cache.img && \
 
 COPY anita-wrapper.sh /home/mani/mani-wrapper.sh
 ENV INST_IMG ${INST_IMG}
+ENV MEM_SIZE ${RUNTIME_MEM}
 ENTRYPOINT ["/bin/sh", "/home/mani/mani-wrapper.sh"]
diff --git a/util/manibuilder/Makefile.anita b/util/manibuilder/Makefile.anita
index e79519451..21cad8c6b 100644
--- a/util/manibuilder/Makefile.anita
+++ b/util/manibuilder/Makefile.anita
@@ -4,21 +4,25 @@ NETBSD_MIRROR = http://ftp.de.netbsd.org/
 anita\:8.2-amd64-build: PKGSRC_PATH=pub/pkgsrc/packages/NetBSD/amd64/8.2/All
 anita\:8.2-amd64-build: NETBSD_IMAGE=pub/NetBSD/NetBSD-8.2/amd64/
 anita\:8.2-amd64-build: QEMU_DISK_SIZE=2G
-anita\:8.2-amd64-build: QEMU_MEM_SIZE=256M
+anita\:8.2-amd64-build: QEMU_INSTALL_MEM=192M
+anita\:8.2-amd64-build: QEMU_RUNTIME_MEM=512M
 
 anita\:7.1-amd64-build: PKGSRC_PATH=pub/pkgsrc/packages/NetBSD/amd64/7.1/All
 anita\:7.1-amd64-build: NETBSD_IMAGE=pub/NetBSD/NetBSD-7.1/amd64/
 anita\:7.1-amd64-build: QEMU_DISK_SIZE=1G
-anita\:7.1-amd64-build: QEMU_MEM_SIZE=128M
+anita\:7.1-amd64-build: QEMU_INSTALL_MEM=192M
+anita\:7.1-amd64-build: QEMU_RUNTIME_MEM=512M
 
 anita\:7.1-i386-build: PKGSRC_PATH=pub/pkgsrc/packages/NetBSD/i386/7.1/All
 anita\:7.1-i386-build: NETBSD_IMAGE=pub/NetBSD/NetBSD-7.1/i386/
 anita\:7.1-i386-build: QEMU_DISK_SIZE=1G
-anita\:7.1-i386-build: QEMU_MEM_SIZE=128M
+anita\:7.1-i386-build: QEMU_INSTALL_MEM=128M
+anita\:7.1-i386-build: QEMU_RUNTIME_MEM=256M
 
 $(addsuffix -build,$(ANITA_TAGS)): %-build: Dockerfile.anita anita-wrapper.sh
 	$(QUIET_SETUP)docker build . -f $< -t mani/$* \
 		--build-arg PKG_PATH=$(PKGSRC_MIRROR)$(PKGSRC_PATH) \
 		--build-arg INST_IMG=$(NETBSD_MIRROR)$(NETBSD_IMAGE) \
 		--build-arg DISK_SIZE=$(QEMU_DISK_SIZE) \
-		--build-arg MEM_SIZE=$(QEMU_MEM_SIZE)
+		--build-arg INSTALL_MEM=$(QEMU_INSTALL_MEM) \
+		--build-arg RUNTIME_MEM=$(QEMU_RUNTIME_MEM)
diff --git a/util/manibuilder/anita-wrapper.sh b/util/manibuilder/anita-wrapper.sh
index 617e17f83..3ff9ee17b 100644
--- a/util/manibuilder/anita-wrapper.sh
+++ b/util/manibuilder/anita-wrapper.sh
@@ -9,9 +9,10 @@ CCACHE=.ccache/anita-${IDENT}.img
 [ -f ${CCACHE} ] || zcat cache.img.gz >${CCACHE}
 
 if [ $# -eq 0 ]; then
-	exec anita --vmm-args "-hdb ${CCACHE}" interact ${INST_IMG}
+	exec anita --vmm-args "-hdb ${CCACHE}" --memory-size=${MEM_SIZE} \
+		interact ${INST_IMG}
 else
-	exec anita --vmm-args "-hdb ${CCACHE}" --persist \
-		--run ". ./init && manitest \"$*\"" \
+	exec anita --vmm-args "-hdb ${CCACHE}" --memory-size=${MEM_SIZE} \
+		--persist --run ". ./init && manitest \"$*\"" \
 		boot ${INST_IMG}
 fi