diff --git a/src/GameEngine.cpp b/src/GameEngine.cpp
index e807143..8ded69b 100644
--- a/src/GameEngine.cpp
+++ b/src/GameEngine.cpp
@@ -229,7 +229,8 @@ void GameEngine::processEvent(const sf::Event& event)
         std::string name = currentScene()->action(actionCode);
         currentScene()->doAction(name, actionType);
     }
-    else if (currentScene()->key_callable)
+    else if (currentScene()->key_callable && 
+             (event.type == sf::Event::KeyPressed || event.type == sf::Event::KeyReleased))
     {
         currentScene()->key_callable->call(ActionCode::key_str(event.key.code), actionType);
     }
diff --git a/tests/issue78_middle_click_fix_test.py b/tests/issue78_middle_click_fix_test.py
new file mode 100644
index 0000000..fac4f18
--- /dev/null
+++ b/tests/issue78_middle_click_fix_test.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+"""Test that Issue #78 is fixed - Middle Mouse Click should NOT send 'C' keyboard event"""
+import mcrfpy
+from mcrfpy import automation
+import sys
+
+# Track events
+keyboard_events = []
+click_events = []
+
+def keyboard_handler(key):
+    """Track keyboard events"""
+    keyboard_events.append(key)
+    print(f"Keyboard event received: '{key}'")
+    
+def click_handler(x, y, button):
+    """Track click events"""
+    click_events.append((x, y, button))
+    print(f"Click event received: ({x}, {y}, button={button})")
+
+def test_middle_click_fix(runtime):
+    """Test that middle click no longer sends 'C' key event"""
+    print(f"\n=== Testing Issue #78 Fix (runtime: {runtime}) ===")
+    
+    # Simulate middle click
+    print("\nSimulating middle click at (200, 200)...")
+    automation.middleClick(200, 200)
+    
+    # Also test other clicks for comparison
+    print("Simulating left click at (100, 100)...")
+    automation.click(100, 100)
+    
+    print("Simulating right click at (300, 300)...")
+    automation.rightClick(300, 300)
+    
+    # Wait a moment for events to process
+    mcrfpy.setTimer("check_results", check_results, 500)
+
+def check_results(runtime):
+    """Check if the bug is fixed"""
+    print(f"\n=== Results ===")
+    print(f"Keyboard events received: {len(keyboard_events)}")
+    print(f"Click events received: {len(click_events)}")
+    
+    # Check if 'C' was incorrectly triggered
+    if 'C' in keyboard_events or 'c' in keyboard_events:
+        print("\n✗ FAIL - Issue #78 still exists: Middle click triggered 'C' keyboard event!")
+        print(f"Keyboard events: {keyboard_events}")
+    else:
+        print("\n✓ PASS - Issue #78 is FIXED: No spurious 'C' keyboard event from middle click!")
+    
+    # Take screenshot
+    filename = f"issue78_fixed_{int(runtime)}.png"
+    automation.screenshot(filename)
+    print(f"\nScreenshot saved: {filename}")
+    
+    # Cleanup and exit
+    mcrfpy.delTimer("check_results")
+    sys.exit(0)
+
+# Set up test scene
+print("Setting up test scene...")
+mcrfpy.createScene("issue78_test")
+mcrfpy.setScene("issue78_test")
+ui = mcrfpy.sceneUI("issue78_test")
+
+# Register keyboard handler
+mcrfpy.keypressScene(keyboard_handler)
+
+# Create a clickable frame
+frame = mcrfpy.Frame(50, 50, 400, 400,
+                    fill_color=mcrfpy.Color(100, 150, 200),
+                    outline_color=mcrfpy.Color(255, 255, 255),
+                    outline=3.0)
+frame.click = click_handler
+ui.append(frame)
+
+# Add label
+caption = mcrfpy.Caption(mcrfpy.Vector(100, 100),
+                        text="Issue #78 Test - Middle Click",
+                        fill_color=mcrfpy.Color(255, 255, 255))
+caption.size = 24
+ui.append(caption)
+
+# Schedule test
+print("Scheduling test to run after render loop starts...")
+mcrfpy.setTimer("test", test_middle_click_fix, 1000)
\ No newline at end of file