diff --git a/packages/addons/addon-depends/vdr-plugins/vdr-plugin-vnsiserver/package.mk b/packages/addons/addon-depends/vdr-plugins/vdr-plugin-vnsiserver/package.mk
index 2600393ddb..2e27c7d4e9 100644
--- a/packages/addons/addon-depends/vdr-plugins/vdr-plugin-vnsiserver/package.mk
+++ b/packages/addons/addon-depends/vdr-plugins/vdr-plugin-vnsiserver/package.mk
@@ -15,7 +15,7 @@ PKG_TOOLCHAIN="manual"
 
 pre_build_target() {
   WIRBELSCAN_DIR=$(get_build_dir vdr-plugin-wirbelscan)
-  ln -sf ${WIRBELSCAN_DIR}/wirbelscan_services.h $PKG_BUILD
+  ln -sf ${WIRBELSCAN_DIR}/wirbelscan_services.h ${PKG_BUILD}
 }
 
 make_target() {
diff --git a/packages/emulation/libretro-vecx/package.mk b/packages/emulation/libretro-vecx/package.mk
index 1eb0d9ee93..b8a4e2cf12 100644
--- a/packages/emulation/libretro-vecx/package.mk
+++ b/packages/emulation/libretro-vecx/package.mk
@@ -15,7 +15,7 @@ PKG_LIBPATH="${PKG_LIBNAME}"
 PKG_LIBVAR="VECX_LIB"
 
 make_target() {
-  if [ "$OPENGL_SUPPORT" = no ]; then
+  if [ "${OPENGL_SUPPORT}" = no ]; then
     HAS_GLES=1 make
   else
     make
diff --git a/packages/tools/dt-overlays/package.mk b/packages/tools/dt-overlays/package.mk
index 58fe68b41d..d79af586d0 100644
--- a/packages/tools/dt-overlays/package.mk
+++ b/packages/tools/dt-overlays/package.mk
@@ -11,6 +11,6 @@ PKG_DEPENDS_TARGET="dtc:host"
 PKG_LONGDESC="The Device Tree Overlays"
 
 makeinstall_target() {
-  mkdir -p $INSTALL/usr/share/bootloader/overlays
-    cp -p overlays/*/*.dtbo $INSTALL/usr/share/bootloader/overlays
+  mkdir -p ${INSTALL}/usr/share/bootloader/overlays
+    cp -p overlays/*/*.dtbo ${INSTALL}/usr/share/bootloader/overlays
 }