1 files changed, 1 insertions, 1 deletions
diff --git a/Dockerfile b/Dockerfile
index 04fe59d3..e40b3be8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@ ENV METEOR_RELEASE ${METEOR_RELEASE:-1.4.4.1}
 ENV USE_EDGE ${USE_EDGE:-false}
 ENV METEOR_EDGE ${METEOR_EDGE:-1.5-beta.17}
 ENV NPM_VERSION ${NPM_VERSION:-5.0.3}
-ENV FIBERS_VERSION ${FIBERS_VERSION:1.0.15}
+ENV FIBERS_VERSION=1.0.15
 ENV ARCHITECTURE ${ARCHITECTURE:-linux-x64}
 ENV SRC_PATH ${SRC_PATH:-./}