diff --git a/print/lyx-devel/Makefile b/print/lyx-devel/Makefile
index 523b8c6f8c9c..667e9d63c9b0 100644
--- a/print/lyx-devel/Makefile
+++ b/print/lyx-devel/Makefile
@@ -45,5 +45,6 @@ pre-fetch:
 
 post-patch:
 	(cd ${WRKSRC}; ${TOUCH} Makefile.in */Makefile.in src/config.h.in)
+	(cd ${WRKSRC}/lib/doc; ${RM} -f *.orig)
 
 .include <bsd.port.mk>
diff --git a/print/lyx/Makefile b/print/lyx/Makefile
index 523b8c6f8c9c..667e9d63c9b0 100644
--- a/print/lyx/Makefile
+++ b/print/lyx/Makefile
@@ -45,5 +45,6 @@ pre-fetch:
 
 post-patch:
 	(cd ${WRKSRC}; ${TOUCH} Makefile.in */Makefile.in src/config.h.in)
+	(cd ${WRKSRC}/lib/doc; ${RM} -f *.orig)
 
 .include <bsd.port.mk>
diff --git a/print/lyx14/Makefile b/print/lyx14/Makefile
index 523b8c6f8c9c..667e9d63c9b0 100644
--- a/print/lyx14/Makefile
+++ b/print/lyx14/Makefile
@@ -45,5 +45,6 @@ pre-fetch:
 
 post-patch:
 	(cd ${WRKSRC}; ${TOUCH} Makefile.in */Makefile.in src/config.h.in)
+	(cd ${WRKSRC}/lib/doc; ${RM} -f *.orig)
 
 .include <bsd.port.mk>
diff --git a/print/lyx15/Makefile b/print/lyx15/Makefile
index 523b8c6f8c9c..667e9d63c9b0 100644
--- a/print/lyx15/Makefile
+++ b/print/lyx15/Makefile
@@ -45,5 +45,6 @@ pre-fetch:
 
 post-patch:
 	(cd ${WRKSRC}; ${TOUCH} Makefile.in */Makefile.in src/config.h.in)
+	(cd ${WRKSRC}/lib/doc; ${RM} -f *.orig)
 
 .include <bsd.port.mk>
diff --git a/print/lyx16/Makefile b/print/lyx16/Makefile
index 523b8c6f8c9c..667e9d63c9b0 100644
--- a/print/lyx16/Makefile
+++ b/print/lyx16/Makefile
@@ -45,5 +45,6 @@ pre-fetch:
 
 post-patch:
 	(cd ${WRKSRC}; ${TOUCH} Makefile.in */Makefile.in src/config.h.in)
+	(cd ${WRKSRC}/lib/doc; ${RM} -f *.orig)
 
 .include <bsd.port.mk>