diff --git a/Local.mak.in b/Local.mak.in
index 3cf7291b..bd804c5c 100644
--- a/Local.mak.in
+++ b/Local.mak.in
@@ -33,5 +33,6 @@ docdir=@docdir@
 htmldir=@htmldir@
 mandir=@mandir@
 bindir=@bindir@
+datadir=@datadir@
 datarootdir=@datarootdir@
 xca_prefix=${datarootdir}/${PACKAGE_TARNAME}
diff --git a/img/Makefile b/img/Makefile
index 8232db20..ee807184 100644
--- a/img/Makefile
+++ b/img/Makefile
@@ -13,7 +13,7 @@ include $(TOPDIR)/Rules.mak
 sinclude .depend
 
 install: xca-32x32.xpm
-	install -D -m 644 $^ $(DESTDIR)$(prefix)/share/pixmaps/xca-32x32.xpm
+	install -D -m 644 $^ $(DESTDIR)$(datadir)/pixmaps/xca-32x32.xpm
 
 imgres.cpp: imgres.rcc
 	@$(PRINT) "  RCC    [$(BASENAME)] $@"