diff --git a/finddeps.sh b/finddeps.sh
index 0b3e0a8..3ace729 100755
--- a/finddeps.sh
+++ b/finddeps.sh
@@ -4,8 +4,8 @@ search() {
   echo "$1"
   prefix="$(printf "%s\n" "$1"|sed 's|[^/]*$||')"
   deps="$(grep -E '^#include "[^"]*"$' "$1"|cut '-d"' -f2|
-    \sed "s|^|$prefix|;s|\.h\$|.c|"|grep -v "$1")"
+    \sed "s|^|$prefix|;s|\.h\$|.c|"|grep -v "^$1")"
   for i in $deps; do search $i; done
 }
 
-search "$1"|sort -u|grep -v "$1"|sed 's|\.c$|.o|'
+search "$1"|sort -u|grep -v "^$1"|sed 's|\.c$|.o|'