diff --git a/lib/tool_shed/galaxy_install/tool_dependencies/fabric_util.py b/lib/tool_shed/galaxy_install/tool_dependencies/fabric_util.py
index 5a0ae9eca40..21fc7e4535e 100755
--- a/lib/tool_shed/galaxy_install/tool_dependencies/fabric_util.py
+++ b/lib/tool_shed/galaxy_install/tool_dependencies/fabric_util.py
@@ -409,7 +409,7 @@ def install_and_build_package( app, tool_dependency, actions_dict ):
                     with lcd( current_dir ):
                         with settings( warn_only=True ):
                             for tarball_name in tarball_names:
-                                cmd = '''PATH=$PATH:$R_HOME/bin; export PATH; R_LIBS=$INSTALL_DIR; export R_LIBS; &&
+                                cmd = '''PATH=$PATH:$R_HOME/bin; export PATH; R_LIBS=$INSTALL_DIR; export R_LIBS;
                                     Rscript -e "install.packages(c('%s'),lib='$INSTALL_DIR', repos=NULL, dependencies=FALSE)"''' % ( str( tarball_name ) )
                                 cmd = install_environment.build_command( td_common_util.evaluate_template( cmd, install_dir ) )
                                 return_code = handle_command( app, tool_dependency, install_dir, cmd )