diff --git a/i18n-tools/scripts/run_po4a.sh b/i18n-tools/scripts/run_po4a.sh
index d45895e2..4d6e7c52 100755
--- a/i18n-tools/scripts/run_po4a.sh
+++ b/i18n-tools/scripts/run_po4a.sh
@@ -28,9 +28,9 @@ if [ -n "$VERBOSE" ]; then
 else
     verbosity="-q"
 fi
-PERL5LIB="${SCRIPT_DIR}/perllib${PERL5LIB+:}$PERL5LIB" po4a -k0 $verbosity -f "$PO4A_CONFIG_FILE" --msgmerge-opt --no-wrap
+PERL5LIB="${SCRIPT_DIR}/perllib${PERL5LIB+:}$PERL5LIB" po4a -k0 $verbosity -f "$PO4A_CONFIG_FILE" --msgmerge-opt=--no-wrap
 
 # if applicable, touch dummy signal file to indicate success
 if [ -n "$PO4A_SIGNALFILE" ]; then
     touch "$PO4A_SIGNALFILE"
-fi
\ No newline at end of file
+fi