diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index 750b8f09d..83a087d8f 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -3595,7 +3595,7 @@ int DoGetMasterTID (AActor *self)
 	else return 0;
 }
 
-static AActor *SingleActorFromTID (int tid, AActor *defactor)
+AActor *SingleActorFromTID (int tid, AActor *defactor)
 {
 	if (tid == 0)
 	{
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index e47f4148f..2ba5fa01a 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -73,6 +73,7 @@
 #include "p_setup.h"
 #include "gstrings.h"
 
+AActor *SingleActorFromTID (int tid, AActor *defactor);
 
 static FRandom pr_camissile ("CustomActorfire");
 static FRandom pr_camelee ("CustomMelee");