diff --git a/src/main.cpp b/src/main.cpp
index f5737a8..3a9c421 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -97,7 +97,7 @@ int main(int argc, char* argv[])
 			return 0;
 		}
 
-		if (strcmp(argv[i], "--version") || strcmp(argv[i], "/version") || strcmp(argv[i], "-v") || strcmp(argv[i], "/v")) {
+		if (!strcmp(argv[i], "--version") || !strcmp(argv[i], "/version") || !strcmp(argv[i], "-v") || !strcmp(argv[i], "/v")) {
 			p2pool_version();
 			return 0;
 		}