diff --git a/app/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java b/app/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
index 7cb0a78..1bbcc42 100644
--- a/app/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
+++ b/app/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
@@ -1,5 +1,7 @@
 package com.offsec.nhterm.backend;
 
+import java.util.Arrays;
+
 /**
  * A circular buffer of {@link TerminalRow}:s which keeps notes about what is visible on a logical screen and the scroll
  * history.
@@ -432,4 +434,13 @@ public final class TerminalBuffer {
     }
   }
 
+  public void clearTranscript() {
+    if (mScreenFirstRow < mActiveTranscriptRows) {
+      Arrays.fill(mLines, mTotalRows + mScreenFirstRow - mActiveTranscriptRows, mTotalRows, null);
+      Arrays.fill(mLines, 0, mScreenFirstRow, null);
+    } else {
+      Arrays.fill(mLines, mScreenFirstRow - mActiveTranscriptRows, mScreenFirstRow, null);
+    }
+    mActiveTranscriptRows = 0;
+  }
 }
diff --git a/app/src/main/java/com/offsec/nhterm/backend/TerminalEmulator.java b/app/src/main/java/com/offsec/nhterm/backend/TerminalEmulator.java
index 3a2685c..5e5c0fa 100644
--- a/app/src/main/java/com/offsec/nhterm/backend/TerminalEmulator.java
+++ b/app/src/main/java/com/offsec/nhterm/backend/TerminalEmulator.java
@@ -1372,6 +1372,7 @@ public final class TerminalEmulator {
         break;
       case 'c': // RIS - Reset to Initial State (http://vt100.net/docs/vt510-rm/RIS).
         reset();
+        mMainBuffer.clearTranscript();
         blockClear(0, 0, mColumns, mRows);
         setCursorPosition(0, 0);
         break;
@@ -1530,6 +1531,9 @@ public final class TerminalEmulator {
             // move..
             blockClear(0, 0, mColumns, mRows);
             break;
+          case 3: // Delete all lines saved in the scrollback buffer (xterm etc)
+            mMainBuffer.clearTranscript();
+            break;
           default:
             unknownSequence(b);
             return;