diff --git a/apps/desktopgui/bundle-messages.sh b/apps/desktopgui/bundle-messages.sh
index ce73e038d..9dad85e5c 100644
--- a/apps/desktopgui/bundle-messages.sh
+++ b/apps/desktopgui/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
diff --git a/apps/i2psnark/java/bundle-messages.sh b/apps/i2psnark/java/bundle-messages.sh
index 079103f31..280ad7234 100755
--- a/apps/i2psnark/java/bundle-messages.sh
+++ b/apps/i2psnark/java/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
diff --git a/apps/i2ptunnel/java/bundle-messages.sh b/apps/i2ptunnel/java/bundle-messages.sh
index d51cffc17..f0b5f8225 100755
--- a/apps/i2ptunnel/java/bundle-messages.sh
+++ b/apps/i2ptunnel/java/bundle-messages.sh
@@ -1,4 +1,5 @@
-#
+#!/bin/sh
+
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
 # Requires installed programs xgettext, msgfmt, msgmerge, and find.
diff --git a/apps/routerconsole/java/bundle-messages.sh b/apps/routerconsole/java/bundle-messages.sh
index 3d4001a97..4a3aa678d 100755
--- a/apps/routerconsole/java/bundle-messages.sh
+++ b/apps/routerconsole/java/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
diff --git a/apps/susidns/src/bundle-messages.sh b/apps/susidns/src/bundle-messages.sh
index 0a3f4e5bc..6208d1acb 100755
--- a/apps/susidns/src/bundle-messages.sh
+++ b/apps/susidns/src/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
diff --git a/apps/susimail/bundle-messages.sh b/apps/susimail/bundle-messages.sh
index 0cfe996f5..60646d7aa 100644
--- a/apps/susimail/bundle-messages.sh
+++ b/apps/susimail/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and messages_xx.class files,
 # from both java and jsp sources.
diff --git a/installer/resources/locale/bundle-messages.sh b/installer/resources/locale/bundle-messages.sh
index f524b04d3..bd4d5ab01 100755
--- a/installer/resources/locale/bundle-messages.sh
+++ b/installer/resources/locale/bundle-messages.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 #
 # Update messages_xx.po and .mo files
 # Requires installed programs xgettext, msgfmt, msgmerge, and find.