diff --git a/docker/ubuntu-aarch64/Dockerfile b/docker/ubuntu-aarch64/Dockerfile
index aae09f71c..1f4159a54 100644
--- a/docker/ubuntu-aarch64/Dockerfile
+++ b/docker/ubuntu-aarch64/Dockerfile
@@ -23,15 +23,9 @@ RUN rustup target add aarch64-unknown-linux-gnu
 # show backtraces
 ENV RUST_BACKTRACE 1
 
-# set compilers
-ENV CXX aarch64-linux-gnu-g++
-ENV CC aarch64-linux-gnu-gcc
-
 # show tools
  RUN rustc -vV && \
- cargo -V && \
- gcc -v &&\
- g++ -v
+ cargo -V 
 
 # build parity
 RUN git clone https://github.com/ethcore/parity && \
diff --git a/docker/ubuntu-arm/Dockerfile b/docker/ubuntu-arm/Dockerfile
index 54a54ad55..6c2fa2852 100644
--- a/docker/ubuntu-arm/Dockerfile
+++ b/docker/ubuntu-arm/Dockerfile
@@ -23,15 +23,10 @@ RUN rustup target add armv7-unknown-linux-gnueabihf
 # show backtraces
 ENV RUST_BACKTRACE 1
 
-# set compilers
-ENV CXX arm-linux-gnueabihf-g++
-ENV CC arm-linux-gnueabihf-gcc
 
 # show tools
  RUN rustc -vV && \
- cargo -V && \
- gcc -v &&\
- g++ -v
+ cargo -V 
 
 # build parity
 RUN git clone https://github.com/ethcore/parity && \