diff --git a/panda/src/particlesystem/config_particlesystem.h b/panda/src/particlesystem/config_particlesystem.h
index 56beffeaf0..011ab8d518 100644
--- a/panda/src/particlesystem/config_particlesystem.h
+++ b/panda/src/particlesystem/config_particlesystem.h
@@ -23,12 +23,4 @@ NotifyCategoryDecl(particlesystem, EXPCL_PANDA_PARTICLESYSTEM, EXPTP_PANDA_PARTI
 
 extern EXPCL_PANDA_PARTICLESYSTEM void init_libparticlesystem();
 
-#ifndef NDEBUG //[
-  // Non-release build:
-  #define PARTICLE_SYSTEM_DEBUG
-#else //][
-  // Release build:
-  #undef PARTICLE_SYSTEM_DEBUG
-#endif //]
-
 #endif // CONFIG_PARTICLESYSTEM_H
diff --git a/panda/src/particlesystem/particleSystem.h b/panda/src/particlesystem/particleSystem.h
index a7b4af64ef..1e5bfdaac8 100644
--- a/panda/src/particlesystem/particleSystem.h
+++ b/panda/src/particlesystem/particleSystem.h
@@ -11,12 +11,6 @@
  * @date 2000-06-14
  */
 
-#ifndef NDEBUG
-// #define PSDEBUG
-#endif
-
-// #define PSSANITYCHECK
-
 #ifndef PARTICLESYSTEM_H
 #define PARTICLESYSTEM_H
 
diff --git a/panda/src/physics/config_physics.h b/panda/src/physics/config_physics.h
index b64fc707fc..26f416476e 100644
--- a/panda/src/physics/config_physics.h
+++ b/panda/src/physics/config_physics.h
@@ -28,8 +28,6 @@ extern EXPCL_PANDA_PHYSICS void init_libphysics();
 // value of bar is " << bar);
 #ifndef NDEBUG //[
   // Non-release build:
-  #define PHYSICS_DEBUG
-
   #define physics_spam(msg) \
   if (physics_cat.is_spam()) { \
     physics_cat->spam() << msg << std::endl; \
@@ -50,8 +48,6 @@ extern EXPCL_PANDA_PHYSICS void init_libphysics();
     physics_cat->error() << msg << std::endl
 #else //][
   // Release build:
-  #undef PHYSICS_DEBUG
-
   #define physics_spam(msg) ((void)0)
   #define physics_debug(msg) ((void)0)
   #define physics_info(msg) ((void)0)