diff --git a/src/gtt-report.js b/src/gtt-report.js
index 29303fb..82c9bad 100755
--- a/src/gtt-report.js
+++ b/src/gtt-report.js
@@ -42,6 +42,7 @@ program
     .option('--today', 'ignores --from and --to and queries entries for today')
     .option('--this_week', 'ignores --from and --to and queries entries for this week')
     .option('--this_month', 'ignores --from and --to and queries entries for this month')
+    .option('--last_month', 'ignores --from and --to and queries entries for last month')
     .option('-c --closed', 'include closed issues')
     .option('-m --milestone <milestone>', 'include issues from the given milestone')
     .option('--hours_per_day <hours>', 'hours per day for human readable time formats')
@@ -168,6 +169,10 @@ if (program.opts().this_month)
     config
         .set('from', moment().startOf('month'))
         .set('to', moment().endOf('month'));
+if (program.opts().last_month)
+    config
+        .set('from', moment().subtract(1, 'months').startOf('month'))
+        .set('to', moment().subtract(1, 'months').endOf('month'));
 
 Cli.quiet = config.get('quiet');
 Cli.verbose = config.get('_verbose');
diff --git a/src/output/base.js b/src/output/base.js
index 219877c..030f7ad 100755
--- a/src/output/base.js
+++ b/src/output/base.js
@@ -171,8 +171,10 @@ class base {
                     projects[time.project_namespace] += time.seconds;
                     days[dateGrp][time.project_namespace][time.iid] += time.seconds;
 
-                    spent += time.seconds;
-                        
+                    if (Math.sign(time.seconds) === 1) {
+                      spent += time.seconds;
+                    }
+
                     if(free) {
                         spentFree += time.seconds;
                     }
@@ -208,7 +210,7 @@ class base {
         this.projects = _.mapObject(projects, project => this.config.toHumanReadable(project, 'stats'));
         this.stats = {
             'total estimate': this.config.toHumanReadable(totalEstimate, 'stats'),
-            'total spent': this.config.toHumanReadable(totalSpent, 'stats'),
+            'total spent': this.config.toHumanReadable(spent, 'stats'),
             'spent': this.config.toHumanReadable(spent, 'stats'),
             'spent free': this.config.toHumanReadable(spentFree, 'stats'),
         };
@@ -216,7 +218,7 @@ class base {
         this.spent = spent;
         this.spentFree = spentFree;
         this.spentHalfPrice = spentHalfPrice;
-        this.totalSpent = totalSpent;
+        this.totalSpent = spent;
         this.timesWarnings = timesWarnings;
         this.daysNew = daysNew;
     }
@@ -242,4 +244,4 @@ class base {
     }
 }
 
-module.exports = base;
\ No newline at end of file
+module.exports = base;