diff --git a/src/main.c b/src/main.c
index d81125e..5802e09 100644
--- a/src/main.c
+++ b/src/main.c
@@ -83,7 +83,7 @@ int main(int argc, char *argv[])
 		char path[] = "/etc/rmps/rmps.conf";
 		int path_size = strlen(path) + 1;
 
-		config = calloc(sizeof(char), path_size);
+		config = calloc(path_size, sizeof(char));
 		if (config == NULL) {
 			fprintf(stderr, "calloc() failed for config\n");
 			exit(EXIT_FAILURE);