diff --git a/src/equation_of_state/planetary/aneos.h b/src/equation_of_state/planetary/aneos.h
index 8eedd198efd96f6483bd29fb2a3033e27426be66..9d14fe2736b9d7e01e4cdbc6c6b8ee093d8382f7 100644
--- a/src/equation_of_state/planetary/aneos.h
+++ b/src/equation_of_state/planetary/aneos.h
@@ -26,7 +26,7 @@
  * Contains the (M)ANEOS EOS functions for
  * equation_of_state/planetary/equation_of_state.h
  *
- *              WORK IN PROGRESS!
+ * Adapted from the implementation in Gadget 2 of Cuk & Stewart (2012)
  *
  */
 
@@ -102,8 +102,6 @@ INLINE static float ANEOS_soundspeed_from_entropy(
 INLINE static float ANEOS_entropy_from_internal_energy(
     float density, float u, struct ANEOS_params *mat) {
 
-    error("This EOS function is not yet implemented!");
-
     return 0;
 }
 
diff --git a/src/equation_of_state/planetary/hm80.h b/src/equation_of_state/planetary/hm80.h
index fde86081b78d14efc33aedfd6e3369940011868f..f0b7d675a8209b27b9bb4da0ecbec33bbfef84cb 100644
--- a/src/equation_of_state/planetary/hm80.h
+++ b/src/equation_of_state/planetary/hm80.h
@@ -187,8 +187,6 @@ INLINE static float HM80_soundspeed_from_entropy(
 INLINE static float HM80_entropy_from_internal_energy(
     float density, float u, struct HM80_params *mat) {
 
-    error("This EOS function is not yet implemented!");
-
     return 0;
 }
 
diff --git a/src/equation_of_state/planetary/sesame.h b/src/equation_of_state/planetary/sesame.h
index c4c4ce2e0266b968d096d3c2fe3ea4c8b8076e77..a6e92920e70ab4af60c8e391b5a4eb64dec1b297 100644
--- a/src/equation_of_state/planetary/sesame.h
+++ b/src/equation_of_state/planetary/sesame.h
@@ -99,8 +99,6 @@ INLINE static float SESAME_soundspeed_from_entropy(
 INLINE static float SESAME_entropy_from_internal_energy(
     float density, float u, struct SESAME_params *mat) {
 
-    error("This EOS function is not yet implemented!");
-
     return 0;
 }
 
diff --git a/src/equation_of_state/planetary/tillotson.h b/src/equation_of_state/planetary/tillotson.h
index 0729a8e96fc0b1ac6cca8b1ff39f136335eab188..9aa54a921555b23e852ff7f9bbe43880d6885fb4 100644
--- a/src/equation_of_state/planetary/tillotson.h
+++ b/src/equation_of_state/planetary/tillotson.h
@@ -147,8 +147,6 @@ INLINE static float Til_soundspeed_from_entropy(
 INLINE static float Til_entropy_from_internal_energy(
     float density, float u, struct Til_params *mat) {
 
-    error("This EOS function is not yet implemented!");
-
     return 0;
 }