Missed a grep

diff --git a/Makefile.am b/Makefile.am
index a752497dc842b648db064aa873cf445b3afcc4e2..c3f3a2fc2838f888040b60069bbabdf6418320e0 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -412,7 +412,7 @@ src/include/switch_version.h: src/include/switch_version.h.in .version $(libfree
        @have_version=1 ; \
        force=0 ; \
        grep -- "@SWITCH_VERSION_REVISION@" src/include/switch_version.h.in > /dev/null  && have_version=0 ; \
-       test ! -f src/include/switch_version.h || grep "@SWITCH_VERSION_REVISION@" src/include/switch_version.h > /dev/null && force=1 ; \
+       test ! -f src/include/switch_version.h || grep -- "@SWITCH_VERSION_REVISION@" src/include/switch_version.h > /dev/null && force=1 ; \
        if test $$have_version = 1 ; then \
          cat src/include/switch_version.h.in > src/include/switch_version.h ; \
          touch .version ; \