diff --git a/AmmoManager/configs/AmmoManager.cfg b/AmmoManager/configs/AmmoManager.cfg
index 101993d6..5e329102 100644
--- a/AmmoManager/configs/AmmoManager.cfg
+++ b/AmmoManager/configs/AmmoManager.cfg
@@ -70,12 +70,12 @@
 		"primary clip"      "100"
 		"primary reserve"   "200"
 	}
-	"weapon_m4a1"           
+	"weapon_m4a1"
 	{
 		"primary clip"      "30"
 		"primary reserve"   "90"
 	}
-	"weapon_m4a1_silencer"  
+	"weapon_m4a1_silencer"
 	{
 		"primary clip"      "20"
 		"primary reserve"   "60"
diff --git a/AmmoManager/scripting/AmmoManager.sp b/AmmoManager/scripting/AmmoManager.sp
index d9196201..bf704963 100644
--- a/AmmoManager/scripting/AmmoManager.sp
+++ b/AmmoManager/scripting/AmmoManager.sp
@@ -108,8 +108,11 @@ public void OnEntityCreated(int entity, const char[] classname)
 {
 	if (strncmp(classname, "weapon_", 7, false) == 0)
 	{
-		DHookEntity(g_hGetMaxClip, true, entity);
-		DHookEntity(g_hGetMaxReserve, true, entity);
+		if (g_hGetMaxClip != INVALID_HANDLE)
+			DHookEntity(g_hGetMaxClip, true, entity);
+
+		if (g_hGetMaxReserve != INVALID_HANDLE)
+			DHookEntity(g_hGetMaxReserve, true, entity);
 	}
 }