diff --git a/lexer/theme-lexer.l b/lexer/theme-lexer.l
index de2eeb67..1439bc51 100644
--- a/lexer/theme-lexer.l
+++ b/lexer/theme-lexer.l
@@ -670,8 +670,8 @@ if ( queue == NULL ) {
     BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
     return T_PARENT_RIGHT;
 }
-<PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{S_T_PARENT_LEFT}  { return T_PARENT_LEFT;    }
-<PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{S_T_PARENT_RIGHT} { return T_PARENT_RIGHT;   }
+<PROPERTIES_ARRAY,PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{S_T_PARENT_LEFT}  { return T_PARENT_LEFT;    }
+<PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{S_T_PARENT_RIGHT} { return T_PARENT_RIGHT;   }
 <PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{COMMA}            { return T_COMMA;          }
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{LIST_OPEN}        {
     g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
diff --git a/lexer/theme-parser.y b/lexer/theme-parser.y
index c33aeee9..33323dcd 100644
--- a/lexer/theme-parser.y
+++ b/lexer/theme-parser.y
@@ -659,13 +659,23 @@ t_property_element_list
   p->value.s = $1;
   $$ = g_list_append ( NULL, p);
 }
+| T_CALC {
+  Property *p = rofi_theme_property_create ( P_STRING );
+  p->value.s = g_strdup("calc");
+  $$ = g_list_append ( NULL, p);
+}
+| t_property_element_list T_COMMA t_property_element {
+    $$ = g_list_append ( $1, $3 );
+}
 | t_property_element_list T_COMMA T_ELEMENT {
   Property *p = rofi_theme_property_create ( P_STRING );
   p->value.s = $3;
   $$ = g_list_append ( $1, p);
 }
-| t_property_element_list T_COMMA t_property_element {
-    $$ = g_list_append ( $1, $3 );
+| t_property_element_list T_COMMA T_CALC {
+  Property *p = rofi_theme_property_create ( P_STRING );
+  p->value.s = g_strdup("calc");
+  $$ = g_list_append ( $1, p);
 }
 ;