diff --git a/src/plugins/plugin.pri b/src/plugins/plugin.pri
index 88e3ae88f..110318961 100644
--- a/src/plugins/plugin.pri
+++ b/src/plugins/plugin.pri
@@ -8,8 +8,10 @@ INCLUDEPATH += ../../../db ../../../tl ../../../gsi ../../../laybasic ../../../l
 DEPENDPATH += ../../../db ../../../tl ../../../gsi ../../../laybasic ../../../lay ../../../common
 LIBS += -L$$DESTDIR_KLP -lklayout_db -lklayout_tl -lklayout_gsi -lklayout_laybasic -lklayout_lay
 
-isEmpty(DESTDIR_TARGET) {
-  QMAKE_POST_LINK += $(COPY) $(DESTDIR)$(TARGET) $$DESTDIR_KLP/$${TARGET}.klp
-} else {
+# Only on Windows, DESTDIR_TARGET is usable. On this platform, a blank happens to appear between
+# $(DESTDIR) and $(TARGET)
+win32 {
   QMAKE_POST_LINK += $(COPY) $(DESTDIR_TARGET) $$DESTDIR_KLP/$${TARGET}.klp
+} else {
+  QMAKE_POST_LINK += $(COPY) $(DESTDIR)$(TARGET) $$DESTDIR_KLP/$${TARGET}.klp
 }
diff --git a/src/plugins/plugin_ut.pri b/src/plugins/plugin_ut.pri
index 018ef76bc..fe3f42547 100644
--- a/src/plugins/plugin_ut.pri
+++ b/src/plugins/plugin_ut.pri
@@ -8,8 +8,10 @@ INCLUDEPATH += ../src ../../../db ../../../tl ../../../gsi ../../../laybasic ../
 DEPENDPATH += ../src ../../../db ../../../tl ../../../gsi ../../../laybasic ../../../lay ../../../common ../../../ut
 LIBS += -L$$DESTDIR_KLP -lklayout_db -lklayout_tl -lklayout_gsi -lklayout_laybasic -lklayout_lay -lklayout_ut
 
-isEmpty(DESTDIR_TARGET) {
-  QMAKE_POST_LINK += $(COPY) $(DESTDIR)$(TARGET) $$DESTDIR_KLP/$${TARGET}.klp_ut
-} else {
+# Only on Windows, DESTDIR_TARGET is usable. On this platform, a blank happens to appear between
+# $(DESTDIR) and $(TARGET)
+win32 {
   QMAKE_POST_LINK += $(COPY) $(DESTDIR_TARGET) $$DESTDIR_KLP/$${TARGET}.klp_ut
+} else {
+  QMAKE_POST_LINK += $(COPY) $(DESTDIR)$(TARGET) $$DESTDIR_KLP/$${TARGET}.klp_ut
 }