diff --git a/srcpkgs/clucene/patches/clucene-pthread.patch b/srcpkgs/clucene/patches/clucene-pthread.patch
new file mode 100644
index 00000000000000..7aed18cce89b31
--- /dev/null
+++ b/srcpkgs/clucene/patches/clucene-pthread.patch
@@ -0,0 +1,12 @@
+diff --git a/src/shared/CLucene/LuceneThreads.h b/src/shared/CLucene/LuceneThreads.h
+index 97072ee..4ee241e 100644
+--- a/src/shared/CLucene/LuceneThreads.h
++++ b/src/shared/CLucene/LuceneThreads.h
+@@ -7,6 +7,7 @@
+ #ifndef _LuceneThreads_h
+ #define  _LuceneThreads_h
+ 
++#include <pthread.h>
+ 
+ CL_NS_DEF(util)
+ class CLuceneThreadIdCompare;