diff --git a/configure.ac b/configure.ac
index 24d80bd493..99fc0452dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3307,6 +3307,7 @@ AM_CONDITIONAL([ENABLE_MULTISENSE], [test "${want_multisense}" = "yes"])
 AC_DEFINE_IF([ENABLE_MULTISENSE], [test "${want_multisense}" = "yes"],
   [1], [Use Multisense])
 AC_SUBST([want_multisense])
+AC_SUBST([want_physics])
 
 ### Checks for header files
 
diff --git a/pc/edje.pc.in b/pc/edje.pc.in
index c5a8764cc7..aee4ba969d 100644
--- a/pc/edje.pc.in
+++ b/pc/edje.pc.in
@@ -7,6 +7,7 @@ datarootdir=@datarootdir@
 datadir=@datadir@/edje
 vmaj=@VMAJ@
 multisense=@want_multisense@
+physics=@want_physics@
 
 Name: edje
 Description: Enlightened graphical design and layout engine.