diff --git a/configure.ac b/configure.ac
index f445379cf4defd8a4fb316fd3a1911e13400a747..0cec4d9ea82464ebe665729792bc52c6db140706 100644
--- a/configure.ac
+++ b/configure.ac
@@ -58,7 +58,7 @@ AC_CONFIG_FILES([dumux.pc
     dumux/material/fluidmatrixinteractions/Makefile 
     dumux/material/fluidmatrixinteractions/2p/Makefile 
     dumux/material/fluidmatrixinteractions/3p/Makefile 
-    dumux/material/fluidmatrixinteractions/Mp/Makefile 
+    dumux/material/fluidmatrixinteractions/mp/Makefile 
     dumux/material/spatialparameters/Makefile 
     dumux/material/fluidstates/Makefile 
     dumux/material/fluidsystems/Makefile