diff --git a/packages/gnucap/apps-Make1.patch b/packages/gnucap/apps-Make1.patch
new file mode 100644
index 000000000..7b1b06c31
--- /dev/null
+++ b/packages/gnucap/apps-Make1.patch
@@ -0,0 +1,13 @@
+--- ./apps/Make1.orig	2019-01-25 23:36:01.916529515 +0100
++++ ./apps/Make1	2019-01-25 23:38:28.213195130 +0100
+@@ -119,8 +119,8 @@
+ MAINTAINERCLEANFILES = $(DISTCLEANFILES)
+ #------------------------------------------------------------------------
+ #------------------------------------------------------------------------
+-LIBPATH = `pwd | sed 's/apps/lib/g'`
+-MODELGEN = `pwd | sed 's/apps/modelgen/g'`/gnucap-modelgen
++LIBPATH = @TERMUX_PKG_HOSTBUILD_DIR@/lib/O
++MODELGEN = @TERMUX_PKG_HOSTBUILD_DIR@/modelgen/O/gnucap-modelgen
+ #------------------------------------------------------------------------
+ %.h : %.model
+ 	(export LD_LIBRARY_PATH=$(LIBPATH); $(MODELGEN) -h $<)
diff --git a/packages/gnucap/build.sh b/packages/gnucap/build.sh
index eb103e288..9ef82e099 100644
--- a/packages/gnucap/build.sh
+++ b/packages/gnucap/build.sh
@@ -14,14 +14,10 @@ termux_step_host_build () {
 	./configure
 	(cd lib && make)
 	(cd modelgen && make)
-	(cd apps && make)
 }
 
 termux_step_pre_configure () {
-	mkdir -p $TERMUX_PKG_SRCDIR/apps/O/
-	cp -r $TERMUX_PKG_HOSTBUILD_DIR/apps/O/*.cc \
-	   $TERMUX_PKG_HOSTBUILD_DIR/apps/O/*.h \
-	   $TERMUX_PKG_SRCDIR/apps/O/
+	sed -i "s%@TERMUX_PKG_HOSTBUILD_DIR@%$TERMUX_PKG_HOSTBUILD_DIR%g" $TERMUX_PKG_SRCDIR/apps/Make1
 }
 
 termux_step_configure () {