diff --git a/docker/Dockerfile_opensuse-leap_15.3 b/docker/Dockerfile_opensuse-leap_15.3
index 03c2586bcd4c0ac986087f097354d523abbb9d9e..d9cb89578959e898ca191554de5eebcd5fb7e1ef 100644
--- a/docker/Dockerfile_opensuse-leap_15.3
+++ b/docker/Dockerfile_opensuse-leap_15.3
@@ -102,4 +102,6 @@ RUN /opt/install-cmake.sh
 
 ADD scripts/build-package-rpm.sh  /opt/build-package-rpm.sh
 
+ENV CC=gcc
+ENV CXX=g++
 CMD ["/opt/build-package-rpm.sh"]