diff --git a/doc/dehacked.txt b/doc/dehacked.txt
index 1da10758..da64918f 100644
--- a/doc/dehacked.txt
+++ b/doc/dehacked.txt
@@ -2586,7 +2586,7 @@ the two Things for PUSH and PULL wind sources at the end.
     NOBLOCKMAP  
 
 140 DOGS
-    SOLID+SHOOTABLE+COUNTKILL
+    SOLID+SHOOTABLE+COUNTKILL+ISMONSTER
 
 141 PLASMA1
     NOBLOCKMAP+MISSILE+DROPOFF+NOGRAVITY+BOUNCES
diff --git a/src/info.c b/src/info.c
index a4cb7bc9..18b32a8e 100644
--- a/src/info.c
+++ b/src/info.c
@@ -5547,7 +5547,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] = {
     100,            // mass
     0,              // damage
     sfx_dgact,      // activesound
-    MF_SOLID|MF_SHOOTABLE|MF_COUNTKILL, // flags
+    MF_ISMONSTER|MF_SOLID|MF_SHOOTABLE|MF_COUNTKILL, // flags
     S_DOGS_RAISE1,  // raisestate
     0,              // meleethreshold
     0,              // maxattackrange