diff --git a/astrometry-Add-SONAME-to-libastrometry.so.patch b/astrometry-Add-SONAME-to-libastrometry.so.patch
index a12339c..945b081 100644
--- a/astrometry-Add-SONAME-to-libastrometry.so.patch
+++ b/astrometry-Add-SONAME-to-libastrometry.so.patch
@@ -24,10 +24,10 @@ index 59809ba..1d55c9c 100644
  	done
  	mkdir -p '$(LIB_INSTALL_DIR)'
  	@for x in $(INSTALL_LIB); do \
--		echo cp $$x '$(LIB_INSTALL_DIR)'; \
--		cp $$x '$(LIB_INSTALL_DIR)'; \
-+		echo cp -d $$x* '$(LIB_INSTALL_DIR)'; \
-+		cp -d $$x* '$(LIB_INSTALL_DIR)'; \
+-		echo $(CP) $$x '$(LIB_INSTALL_DIR)'; \
+-		$(CP) $$x '$(LIB_INSTALL_DIR)'; \
++		echo $(CP) -d $$x* '$(LIB_INSTALL_DIR)'; \
++		$(CP) -d $$x* '$(LIB_INSTALL_DIR)'; \
  	done
  	mkdir -p '$(PY_INSTALL_DIR)'
  	@for x in $(PYTHON_INSTALL); do \