diff --git a/Makefile.in b/Makefile.in
index a05ff86..7a68fcb 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -190,7 +190,9 @@ strip: $(PRPL_LIBNAME)
 	$(STRIP) --strip-unneeded $(PRPL_LIBNAME)
 
 .PHONY: build-nsi
-build-nsi: telegram-purple.nsi.awk telegram-purple.nsi.awk-in
+build-nsi: telegram-purple.nsi
+
+telegram-purple.nsi: telegram-purple.nsi.awk telegram-purple.nsi.awk-in po/LINGUAS
 	awk -f telegram-purple.nsi.awk telegram-purple.nsi.awk-in > telegram-purple.nsi
 
 .PHONY: run
diff --git a/telegram-purple.nsi b/telegram-purple.nsi
index b6c31d3..ebd282f 100644
--- a/telegram-purple.nsi
+++ b/telegram-purple.nsi
@@ -92,13 +92,14 @@ Section "MainSection" SEC01
 	
 	SetOutPath "$PidginDir\locale"
 	File /nonfatal "/oname=bg\LC_MESSAGES\telegram-purple.mo" "po\bg.mo"
-	File /nonfatal "/oname=cs_CZ\LC_MESSAGES\telegram-purple.mo" "po\cs_CZ.mo"
-	File /nonfatal "/oname=de_DE\LC_MESSAGES\telegram-purple.mo" "po\de_DE.mo"
+	File /nonfatal "/oname=cs\LC_MESSAGES\telegram-purple.mo" "po\cs.mo"
+	File /nonfatal "/oname=de\LC_MESSAGES\telegram-purple.mo" "po\de.mo"
+	File /nonfatal "/oname=es\LC_MESSAGES\telegram-purple.mo" "po\es.mo"
 	File /nonfatal "/oname=es_AR\LC_MESSAGES\telegram-purple.mo" "po\es_AR.mo"
 	File /nonfatal "/oname=fr\LC_MESSAGES\telegram-purple.mo" "po\fr.mo"
-	File /nonfatal "/oname=it_IT\LC_MESSAGES\telegram-purple.mo" "po\it_IT.mo"
+	File /nonfatal "/oname=it\LC_MESSAGES\telegram-purple.mo" "po\it.mo"
 	File /nonfatal "/oname=nl\LC_MESSAGES\telegram-purple.mo" "po\nl.mo"
-	File /nonfatal "/oname=pl_PL\LC_MESSAGES\telegram-purple.mo" "po\pl_PL.mo"
+	File /nonfatal "/oname=pl\LC_MESSAGES\telegram-purple.mo" "po\pl.mo"
 	File /nonfatal "/oname=ru_RU\LC_MESSAGES\telegram-purple.mo" "po\ru_RU.mo"
 	File /nonfatal "/oname=sq\LC_MESSAGES\telegram-purple.mo" "po\sq.mo"
 	File /nonfatal "/oname=uk\LC_MESSAGES\telegram-purple.mo" "po\uk.mo"