diff --git a/README.md b/README.md
index 5c3d316..a9da9f3 100644
--- a/README.md
+++ b/README.md
@@ -312,6 +312,11 @@ interpolated from `DOTMATRIX_COLOR_LINE_START`
 to `DOTMATRIX_COLOR_LINE_END`.
 
 
+**DOTMATRIX_MARK_ERROR** *string = " "*
+
+Icon displayed in front of the last exit error code.
+
+
 #### Variant Markers
 
 These options are the one used to actually define the theme variants.
diff --git a/dotmatrix.theme b/dotmatrix.theme
index 842e6ef..79b6c97 100644
--- a/dotmatrix.theme
+++ b/dotmatrix.theme
@@ -30,6 +30,8 @@ _lp_dotmatrix_theme_activate() {
     DOTMATRIX_VCS_BEHIND_THRESHOLD=${DOTMATRIX_VCS_BEHIND_THRESHOLD:-5}
     DOTMATRIX_VCS_DIFF_THRESHOLD=${DOTMATRIX_VCS_DIFF_THRESHOLD:-300}
 
+    DOTMATRIX_MARK_ERROR=${DOTMATRIX_MARK_ERROR:-⚠}
+
     # Sets of characters
     DOTMATRIX_VARIANT=${DOTMATRIX_VARIANT:-"dotmatrix"}
     if [[ "${DOTMATRIX_VARIANT}" == "dotmatrix" ]] ; then
@@ -554,7 +556,7 @@ _lp_dotmatrix_theme_prompt() {
 
     if _lp_error ; then
         __dotmatrix_make_sep_link ${DOTMATRIX_COLOR_WARN[@]+"${DOTMATRIX_COLOR_WARN[@]}"}
-        __dotmatrix_make_field "${lp_error}" ${DOTMATRIX_COLOR_WARN[@]+"${DOTMATRIX_COLOR_WARN[@]}"}
+        __dotmatrix_make_field "${DOTMATRIX_MARK_ERROR}${lp_error}" ${DOTMATRIX_COLOR_WARN[@]+"${DOTMATRIX_COLOR_WARN[@]}"}
         prompt+="${dotmatrix_sep}${dotmatrix_field}"
     fi