diff --git a/libcoro.pc.in b/libcoro.pc.in
--- a/libcoro.pc.in
+++ b/libcoro.pc.in
@@ -1,5 +1,5 @@
 prefix="@CMAKE_INSTALL_PREFIX@"
 libdir="${prefix}/lib"
-includedir="@CMAKE_INSTALL_INCLUDEDIR@"
+includedir="${prefix}/include"
 
 Name: @PROJECT_NAME@