diff --git a/functions-common b/functions-common
index d055e2b8f8..56106b3194 100644
--- a/functions-common
+++ b/functions-common
@@ -147,6 +147,21 @@ $option = $value
     $xtrace
 }
 
+function inidelete {
+    local xtrace=$(set +o | grep xtrace)
+    set +o xtrace
+    local file=$1
+    local section=$2
+    local option=$3
+
+    [[ -z $section || -z $option ]] && return
+
+    # Remove old values
+    sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file"
+
+    $xtrace
+}
+
 # Set an option in an INI file
 # iniset config-file section option value
 function iniset {
diff --git a/lib/config b/lib/config
index c0756bf3fe..31c6fa6e57 100644
--- a/lib/config
+++ b/lib/config
@@ -144,6 +144,7 @@ function merge_config_file {
                     else {
                         # For multiline, invoke the ini routines in the reverse order
                         count = cfg_attr_count[section, attr]
+                        print "inidelete " configfile " " section " " attr
                         print "iniset " configfile " " section " " attr " \"" cfg_attr[section, attr, count - 1] "\""
                         for (l = count -2; l >= 0; l--)
                             print "iniadd_literal " configfile " " section " " attr " \"" cfg_attr[section, attr, l] "\""
diff --git a/tests/test_ini.sh b/tests/test_ini.sh
index 598cd578f6..106cc9507f 100755
--- a/tests/test_ini.sh
+++ b/tests/test_ini.sh
@@ -34,6 +34,32 @@ empty =
 [eee]
 multi = foo1
 multi = foo2
+
+# inidelete(a)
+[del_separate_options]
+a=b
+b=c
+
+# inidelete(a)
+[del_same_option]
+a=b
+a=c
+
+# inidelete(a)
+[del_missing_option]
+b=c
+
+# inidelete(a)
+[del_missing_option_multi]
+b=c
+b=d
+
+# inidelete(a)
+[del_no_options]
+
+# inidelete(a)
+# no section - del_no_section
+
 EOF
 
 # Test with missing arguments
@@ -237,4 +263,33 @@ else
     echo "iniadd with non-exsting failed: $VAL"
 fi
 
+# Test inidelete
+del_cases="
+    del_separate_options
+    del_same_option
+    del_missing_option
+    del_missing_option_multi
+    del_no_options
+    del_no_section"
+
+for x in $del_cases; do
+    inidelete test.ini $x a
+    VAL=$(iniget_multiline test.ini $x a)
+    if [ -z "$VAL" ]; then
+        echo "OK: inidelete $x"
+    else
+        echo "inidelete $x failed: $VAL"
+    fi
+    if [ "$x" = "del_separate_options" -o \
+        "$x" = "del_missing_option" -o \
+        "$x" = "del_missing_option_multi" ]; then
+        VAL=$(iniget_multiline test.ini $x b)
+        if [ "$VAL" = "c" -o "$VAL" = "c d" ]; then
+            echo "OK: inidelete other_options $x"
+        else
+            echo "inidelete other_option $x failed: $VAL"
+        fi
+    fi
+done
+
 rm test.ini