X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=blobdiff_plain;f=src%2Finit.c;h=3a2f9f318d4fe0ce098344cfaf029a7d47803d76;hp=5aa38b583cb4e90ad7d1139bae4c8c50a76c1708;hb=62b17f905b02a37a044d8aa85ca1afaf95ff360b;hpb=11a609891864a7d293e34d5d623ab497620118a2

diff --git a/src/init.c b/src/init.c
index 5aa38b58..3a2f9f31 100644
--- a/src/init.c
+++ b/src/init.c
@@ -4570,8 +4570,8 @@ void InitElementPropertiesEngine(int engine_version)
     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
     else
-      SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
-					    IS_INDESTRUCTIBLE(i)));
+      SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_INDESTRUCTIBLE(i) &&
+					    i != EL_ACID));
 
     /* ---------- EXPLOSION_PROOF ------------------------------------------ */
     if (i == EL_FLAMES)