diff --git a/packages/OS400/initscript.sh b/packages/OS400/initscript.sh
index 97e978158b..d28a8db119 100644
--- a/packages/OS400/initscript.sh
+++ b/packages/OS400/initscript.sh
@@ -157,6 +157,10 @@ db2_name()
         basename "${1}"                                                 |
         tr 'a-z-' 'A-Z_'                                                |
         sed -e 's/\..*//'                                               \
+            -e 's/\([^_]\)[^_]*_\(.*\)/\1\2/'                                \
+            -e 's/\([^_]\)\([^_]\)[^_]*_\(.*\)/\1\2\3/'                      \
+            -e 's/\([^_]\)\([^_]\)\([^_]\)[^_]*_\(.*\)/\1\2\3\4/'            \
+            -e 's/\([^_]\)\([^_]\)\([^_]\)\([^_]\)[^_]*_\(.*\)/\1\2\3\4\5/'  \
             -e 's/^\(..........\).*/\1/'
 }