diff --git a/src/g_shared/a_morph.cpp b/src/g_shared/a_morph.cpp
index 836cf41e72..8b76e2f669 100644
--- a/src/g_shared/a_morph.cpp
+++ b/src/g_shared/a_morph.cpp
@@ -15,6 +15,9 @@
 
 static FRandom pr_morphmonst ("MorphMonster");
 
+void EndAllPowerupEffects(AInventory *item);
+void InitAllPowerupEffects(AInventory *item);
+
 //---------------------------------------------------------------------------
 //
 // FUNC P_MorphPlayer