diff --git a/src/decor.cxx b/src/decor.cxx
index 9985376..b972a3f 100644
--- a/src/decor.cxx
+++ b/src/decor.cxx
@@ -1864,6 +1864,9 @@ Errors CDecor::CelOkForAction (
         error = Errors::MISC; // pas assez fort
       }
 
+      if (m_blupi[rank].energy <= MAXENERGY / 2)
+        error = Errors::ENERGY; // not enough energy
+
       GetObject (cel, channel, icon);
       if (channel != CHOBJECT || icon != 44) // pierres ?
       {
@@ -1916,6 +1919,9 @@ Errors CDecor::CelOkForAction (
         error = Errors::MISC; // pas assez fort
       }
 
+      if (m_blupi[rank].energy <= MAXENERGY / 2)
+        error = Errors::ENERGY; // not enough energy
+
       GetObject (cel, channel, icon);
       if (channel != CHOBJECT || icon != 44) // pierres ?
       {
diff --git a/src/def.h b/src/def.h
index b0e5e57..6d8663b 100644
--- a/src/def.h
+++ b/src/def.h
@@ -367,6 +367,7 @@ enum Errors {
   TOURISOL = 6,
   TOUREAU  = 7,
   TELE2    = 8,
+  ENERGY   = 9,
   REPEAT   = 500,
 };
 
diff --git a/src/menu.cxx b/src/menu.cxx
index 90d7647..9ad7e5d 100644
--- a/src/menu.cxx
+++ b/src/menu.cxx
@@ -125,7 +125,7 @@ static const char * GetErr (Sint32 rank)
     translate ("Occupied ground"),    translate ("Opposite bank no good"),
     translate ("Bridge finished"),    translate ("(isolated tower)"),
     translate ("Too close to water"), translate ("Already two teleporters"),
-  };
+    translate ("Not enough energy")};
 
   return gettext (list[rank]);
 }