diff --git a/build/jasper.pc.in b/build/jasper.pc.in
index dd075a1c..5275db41 100644
--- a/build/jasper.pc.in
+++ b/build/jasper.pc.in
@@ -1,3 +1,4 @@
+prefix=@CMAKE_INSTALL_PREFIX@
 libdir=@CMAKE_INSTALL_FULL_LIBDIR@
 includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@