diff --git a/PHI-EN/locale/en/locale.cfg b/PHI-EN/locale/en/locale.cfg
index cc75265..0fdc4c4 100644
--- a/PHI-EN/locale/en/locale.cfg
+++ b/PHI-EN/locale/en/locale.cfg
@@ -50,6 +50,7 @@ solar-panel-mk7=Solar Panel MK7
 solar-panel-mk8=Solar Panel MK8
 
 [technology-name]
+compound-energy=Compound Energy
 compound-energy-1=Compound Energy
 compound-energy-2=Compound Energy 2
 compound-energy-3=Compound Energy 3
@@ -59,6 +60,7 @@ compound-energy-6=Compound Energy 6
 compound-energy-7=Compound Energy 7
 
 [technology-description]
+compound-energy=Source of free electric energy, but useless at night.
 compound-energy-1=Source of free electric energy, but useless at night.
 compound-energy-2=Source of free electric energy, but useless at night.
 compound-energy-3=Source of free electric energy, but useless at night.