diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 7e83121f..648f13ac 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -263,11 +263,11 @@ AS_IF([test "$UDUNITS_HOME" = ""],
   UDUNITS_EXCLUDE=$UDUNITS_HOME
   AC_CHECK_FILE([$UDUNITS_HOME/include/udunits2.h],
    [UDUNITS_INCLUDES=-I$UDUNITS_HOME/include
-    UDUNITS_LDFLAGS="-L$UDUNITS_HOME/lib -ludunits2"
+    UDUNITS_LDFLAGS="-Wl,-rpath,$UDUNITS_HOME/lib -L$UDUNITS_HOME/lib -ludunits2"
    ],
    [AC_CHECK_FILE([$UDUNITS_HOME/lib/udunits2.h],
     [UDUNITS_INCLUDES=-I$UDUNITS_HOME/lib
-     UDUNITS_LDFLAGS="-L$UDUNITS_HOME/lib -ludunits2"
+     UDUNITS_LDFLAGS="-Wl,-rpath,$UDUNITS_HOME/lib -L$UDUNITS_HOME/lib -ludunits2"
     ],
     AC_MSG_ERROR([could not find udunits2]))
    ]
diff --git a/configure b/configure
index 8362b7a1..82894e0f 100755
--- a/configure
+++ b/configure
@@ -6762,7 +6762,7 @@ eval ac_res=\$$as_ac_File
 $as_echo "$ac_res" >&6; }
 if eval test \"x\$"$as_ac_File"\" = x"yes"; then :
   UDUNITS_INCLUDES=-I$UDUNITS_HOME/include
-    UDUNITS_LDFLAGS="-L$UDUNITS_HOME/lib -ludunits2"
+    UDUNITS_LDFLAGS="-Wl,-rpath,$UDUNITS_HOME/lib -L$UDUNITS_HOME/lib -ludunits2"
 
 else
   as_ac_File=`$as_echo "ac_cv_file_$UDUNITS_HOME/lib/udunits2.h" | $as_tr_sh`
@@ -6784,7 +6784,7 @@ eval ac_res=\$$as_ac_File
 $as_echo "$ac_res" >&6; }
 if eval test \"x\$"$as_ac_File"\" = x"yes"; then :
   UDUNITS_INCLUDES=-I$UDUNITS_HOME/lib
-     UDUNITS_LDFLAGS="-L$UDUNITS_HOME/lib -ludunits2"
+     UDUNITS_LDFLAGS="-Wl,-rpath,$UDUNITS_HOME/lib -L$UDUNITS_HOME/lib -ludunits2"
 
 else
   as_fn_error $? "could not find udunits2" "$LINENO" 5