1 files changed, 4 insertions, 2 deletions
diff --git a/bfcomp.c b/bfcomp.c
index 5a3ede6..804b8a5 100644
--- a/bfcomp.c
+++ b/bfcomp.c
@@ -339,8 +339,10 @@ void readsource(FILE *f,char **sourcep,Sourcemap **smp){
 			sourcei++;
 			continue;
 		}
-		if(sm)sm->maps[i].from=sourcei;
-		if(sm)sm->maps[i].to=sourcei+1;
+		if(sm){
+			sm->maps[i].from=sourcei;
+			sm->maps[i].to=sourcei+1;
+		}
 		source[i++]=c;
 		sourcei++;
 	}