diff --git a/Cargo.lock b/Cargo.lock
index f4e8157..ee517ed 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 [root]
 name = "rsmodules"
-version = "0.5.4"
+version = "0.5.6"
 dependencies = [
  "bincode 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 32c23f4..9b23fcc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rsmodules"
-version = "0.5.5"
+version = "0.5.6"
 authors = ["Frederik Delaere <frederik.delaere@ugent.be>"]
 
 [dependencies]
diff --git a/setup_rsmodules.csh b/setup_rsmodules.csh
index 2d27fa3..a6ea5d2 100644
--- a/setup_rsmodules.csh
+++ b/setup_rsmodules.csh
@@ -21,7 +21,9 @@ if ( -f ~/.rsmodules_autoload ) then
 endif
 
 # cleanup old tmp files from crashed rsmodules sessions
-find ~/.rsmodulestmp* -mtime +1 -exec rm -f {} \; >& /dev/null
+find ~/.rsmodulestmp* -mtime +1 -delete >& /dev/null
+# also cleanup empty tmp files
+find ~/.rsmodulestmp* -empty -delete  >& /dev/null
 
 # this should be a function, so everytime it is called the info is updated
 set mod_av="`$RSMODULES_INSTALL_DIR/rsmodules noshell avail`"
diff --git a/setup_rsmodules.sh b/setup_rsmodules.sh
index 35a5557..61f4120 100644
--- a/setup_rsmodules.sh
+++ b/setup_rsmodules.sh
@@ -24,7 +24,9 @@ if [ -f ~/.rsmodules_autoload ]; then
 fi
 
 # cleanup old tmp files from crashed rsmodules sessions
-find ~/.rsmodulestmp* -mtime +1 -exec rm -f {} \;  2> /dev/null
+find ~/.rsmodulestmp* -mtime +1 -delete 2> /dev/null
+# also cleanup empty tmp files
+find ~/.rsmodulestmp* -empty -delete 2> /dev/null
 
 if [ ${BASH_VERSINFO:-0} -ge 3 ]; then
 	#
diff --git a/src/main.rs b/src/main.rs
index 13c256b..19a7d26 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -457,7 +457,7 @@ fn run(args: &Vec<String>) {
         // if it crashes we still need to delete the file
 
 
-        let cmd = format!("rm -f {}\n", tmp_file_path.display());
+        let cmd = format!("\\rm -f {}\n", tmp_file_path.display());
 
         let mut output_buffer = OUTPUT_BUFFER.lock().unwrap();
         let ref mut output_buffer = *output_buffer;