diff --git a/test/fast/Unit tests/nvm_download b/test/fast/Unit tests/nvm_download
index 4f96b396178..19e2dd9e0af 100644
--- a/test/fast/Unit tests/nvm_download	
+++ b/test/fast/Unit tests/nvm_download	
@@ -17,7 +17,7 @@ nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/install.sh" >/de
 ! nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/wrong_install.sh" >/dev/null || die "nvm_download should fail to download no existing file"
 
 # nvm_download should pass when calling with auth header
-docker pull kennethreitz/httpbin && docker run -d --name httpbin -p 80:80 kennethreitz/httpbin
+docker pull kennethreitz/httpbin && docker run --shell=bash -d --name httpbin -p 80:80 kennethreitz/httpbin
 sleep 1 # wait for httpbin to start
 NVM_AUTH_HEADER="Bearer test-token" nvm_download "http://127.0.0.1/bearer" > /dev/null || die 'nvm_download with auth header should send correctly'