diff --git a/umu/umu-launcher/umu-run.in b/umu/umu-launcher/umu-run.in
index 604799d72..093b4ee9a 100755
--- a/umu/umu-launcher/umu-run.in
+++ b/umu/umu-launcher/umu-run.in
@@ -1,3 +1,3 @@
-#!/usr/bin/env sh
+#!/usr/bin/sh
 ##INSTALL_PATH## "$@"
 
diff --git a/umu/umu-run.in b/umu/umu-run.in
index ed92c1405..2cedff691 100755
--- a/umu/umu-run.in
+++ b/umu/umu-run.in
@@ -1,3 +1,3 @@
-#!/usr/bin/env sh
+#!/usr/bin/sh
 ##INSTALL_PATH##/umu_run.py "$@"