diff --git a/apps/desktopgui/bundle-messages.sh b/apps/desktopgui/bundle-messages.sh
index ce73e038dd..9dad85e5c4 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 079103f31b..280ad7234f 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 d51cffc173..f0b5f82253 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 3d4001a971..4a3aa678d7 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 0a3f4e5bcf..6208d1acba 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 0cfe996f5d..60646d7aa7 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 f524b04d30..bd4d5ab010 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.