diff --git a/kernel/Dockerfile.kconfig b/kernel/Dockerfile.kconfig
index b9721483a..85d15ce53 100644
--- a/kernel/Dockerfile.kconfig
+++ b/kernel/Dockerfile.kconfig
@@ -15,7 +15,8 @@ ARG KERNEL_VERSIONS
 COPY / /
 
 # Unpack kernels (download if not present)
-RUN for VERSION in ${KERNEL_VERSIONS}; do \
+RUN set -e && for VERSION in ${KERNEL_VERSIONS}; do \
+        echo "Downloading/Unpacking $VERSION" && \
         KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${VERSION}.tar.xz && \
         [ -f sources/linux-${VERSION}.tar.xz ] || curl -fSLo sources/linux-${VERSION}.tar.xz ${KERNEL_SOURCE} && \
         tar xf sources/linux-${VERSION}.tar.xz; \
@@ -24,8 +25,9 @@ RUN for VERSION in ${KERNEL_VERSIONS}; do \
 # Apply patches to all kernels and move config files into place
 RUN for VERSION in ${KERNEL_VERSIONS}; do \
         SERIES=${VERSION%.*}.x && \
+        echo "Patching $VERSION" && \
         cd /linux-${VERSION} && \
-        for patch in /patches-${SERIES}/*.patch; do \
+        set -e && for patch in /patches-${SERIES}/*.patch; do \
             echo "Applying $patch" && \
             patch -p1 < "$patch"; \
         done && \