diff --git a/dlinject.py b/dlinject.py
index a826768..7bc8675 100755
--- a/dlinject.py
+++ b/dlinject.py
@@ -19,6 +19,7 @@
 import signal
 import time
 import subprocess
+import re
 
 from elftools.elf.elffile import ELFFile
 
@@ -95,16 +96,16 @@ def locate_dl_open(process_maps, mod_name):
 	fail = (False, None, None, None)
 	with open(process_maps) as maps_file:
 		for line in maps_file.readlines():
-			mod_path = line.split()[-1]
-			if mod_name in mod_path:
+			mod_path = line.split(maxsplit=5)[-1].strip()
+			if re.match(f".*{mod_name}\..*", mod_path):
 				mod_base = int(line.split("-")[0], 16)
 				break
 		else:
 			return fail
 
-	if "libc" in mod_name:
+	if mod_name == "libc":
 		dl_open_offset = lookup_elf_symbol(mod_path, "dlopen")
-	elif "ld-linux" in mod_name:
+	elif mod_name == "ld-linux":
 		dl_open_offset = lookup_elf_symbol(mod_path, "_dl_open")
 	else:
 		return fail