diff --git a/images/ska-tango-images-pytango-builder-alpine/Dockerfile b/images/ska-tango-images-pytango-builder-alpine/Dockerfile
index 48c95c59f9b0b53a3513561e031cdd6e6e398e14..3ea1dd7d25c5be4146c0448f0825931de137af0a 100644
--- a/images/ska-tango-images-pytango-builder-alpine/Dockerfile
+++ b/images/ska-tango-images-pytango-builder-alpine/Dockerfile
@@ -68,6 +68,7 @@ RUN set -eux; \
     
 # Install poetry binary 
 RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/usr/local/bin/poetry python3 - --yes
+ENV PATH="/usr/local/bin/poetry:${PATH}"
 
 # Install numpy manually before PyTango and other requirements to ensure we
 # build PyTango with numpy support.
diff --git a/images/ska-tango-images-pytango-builder-no-deps-alpine/Dockerfile b/images/ska-tango-images-pytango-builder-no-deps-alpine/Dockerfile
index 2d0ee815a71e96ba1ed379a1801b48ff33e1037a..df5c23144a7b58a5fa3442f6e5baea34463199fb 100644
--- a/images/ska-tango-images-pytango-builder-no-deps-alpine/Dockerfile
+++ b/images/ska-tango-images-pytango-builder-no-deps-alpine/Dockerfile
@@ -81,6 +81,7 @@ RUN python3.9 -m pip install --prefix=/usr/local wheel numpy==1.21.0 \
 
 # Install poetry binary 
 RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/usr/local/bin/poetry python3 - --yes
+ENV PATH="/usr/local/bin/poetry:${PATH}"
 
 # do ldconfig stuff
 RUN mkdir -p /etc/ld.so.conf.d \