diff --git a/src/b_func.cpp b/src/b_func.cpp
index 4e62c9c4e..cc79deea7 100644
--- a/src/b_func.cpp
+++ b/src/b_func.cpp
@@ -24,6 +24,7 @@
 #include "d_player.h"
 #include "p_spec.h"
 #include "p_checkposition.h"
+#include "actorinlines.h"
 
 static FRandom pr_botdofire ("BotDoFire");
 
diff --git a/src/fragglescript/t_func.cpp b/src/fragglescript/t_func.cpp
index 51c1dd05b..580080d9d 100644
--- a/src/fragglescript/t_func.cpp
+++ b/src/fragglescript/t_func.cpp
@@ -71,6 +71,7 @@
 #include "r_utility.h"
 #include "math/cmath.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 
 static FRandom pr_script("FScript");
 
diff --git a/src/gl/compatibility/gl_20.cpp b/src/gl/compatibility/gl_20.cpp
index 7fc8b783b..923c3e989 100644
--- a/src/gl/compatibility/gl_20.cpp
+++ b/src/gl/compatibility/gl_20.cpp
@@ -38,6 +38,7 @@
 #include "v_text.h"
 #include "r_utility.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #include "gl/dynlights/gl_dynlight.h"
 #include "gl/utility/gl_geometric.h"
 #include "gl/renderer/gl_renderer.h"
diff --git a/src/gl/scene/gl_portal.cpp b/src/gl/scene/gl_portal.cpp
index 5fb087f96..ca5b5ae50 100644
--- a/src/gl/scene/gl_portal.cpp
+++ b/src/gl/scene/gl_portal.cpp
@@ -35,6 +35,8 @@
 #include "portal.h"
 #include "p_maputl.h"
 #include "d_player.h"
+#include "g_levellocals.h"
+#include "actorinlines.h"
 
 #include "gl/system/gl_interface.h"
 #include "gl/system/gl_framebuffer.h"
diff --git a/src/gl/scene/gl_sprite.cpp b/src/gl/scene/gl_sprite.cpp
index e87737da0..a0338255e 100644
--- a/src/gl/scene/gl_sprite.cpp
+++ b/src/gl/scene/gl_sprite.cpp
@@ -38,6 +38,7 @@
 #include "d_player.h"
 #include "g_levellocals.h"
 #include "events.h"
+#include "actorinlines.h"
 
 #include "gl/system/gl_interface.h"
 #include "gl/system/gl_framebuffer.h"
diff --git a/src/p_3dfloors.cpp b/src/p_3dfloors.cpp
index 35c6b4673..6c4527b31 100644
--- a/src/p_3dfloors.cpp
+++ b/src/p_3dfloors.cpp
@@ -48,6 +48,7 @@
 #include "p_spec.h"
 #include "r_data/colormaps.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 
 EXTERN_CVAR(Int, vid_renderer)
 
diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index c50e787d2..99e092b28 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -84,6 +84,7 @@
 #include "a_pickups.h"
 #include "r_data/colormaps.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #include "stats.h"
 
 	// P-codes for ACS scripts
diff --git a/src/p_actionfunctions.cpp b/src/p_actionfunctions.cpp
index 2556c3b24..efec8adc2 100644
--- a/src/p_actionfunctions.cpp
+++ b/src/p_actionfunctions.cpp
@@ -81,6 +81,7 @@
 #include "g_levellocals.h"
 #include "r_utility.h"
 #include "sbar.h"
+#include "actorinlines.h"
 
 AActor *SingleActorFromTID(int tid, AActor *defactor);
 
diff --git a/src/p_spec.cpp b/src/p_spec.cpp
index c8ffc67e3..fcfd0ddf4 100644
--- a/src/p_spec.cpp
+++ b/src/p_spec.cpp
@@ -72,6 +72,7 @@
 #include "p_maputl.h"
 #include "p_blockmap.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #ifndef NO_EDATA
 #include "edata.h"
 #endif
diff --git a/src/p_user.cpp b/src/p_user.cpp
index f93d2b742..23fdcd865 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -60,6 +60,7 @@
 #include "p_spec.h"
 #include "virtual.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #include "r_data/r_translate.h"
 
 static FRandom pr_skullpop ("SkullPop");
diff --git a/src/p_xlat.cpp b/src/p_xlat.cpp
index 6c29482d7..9ec582a92 100644
--- a/src/p_xlat.cpp
+++ b/src/p_xlat.cpp
@@ -45,6 +45,7 @@
 #include "sc_man.h"
 #include "cmdlib.h"
 #include "g_levellocals.h"
+#include "actorinlines.h"
 #include "xlat/xlat.h"
 
 // define names for the TriggerType field of the general linedefs