diff --git a/main.c b/main.c
index f94a80b..8c17454 100644
--- a/main.c
+++ b/main.c
@@ -61,6 +61,12 @@ int main(int argc, char* argv[]) {
 			eprintf("%s", strerror(errno));
 			exit(1);
 		}
+
+		if(currunit->compiled == NULL) {
+			eprintf("Class '%s' is empty; file '%s'\n", currunit->parsed->name, currunit->file->name);
+			exit(1);
+		}
+
 		printlns(currunit->compiled->head, output);
 		fclose(output);
 		COMPILEUNIT* next = currunit->next;
diff --git a/tokenizer/tokenizer.c b/tokenizer/tokenizer.c
index 9ed303e..d9264b4 100644
--- a/tokenizer/tokenizer.c
+++ b/tokenizer/tokenizer.c
@@ -244,6 +244,11 @@ TOKEN* tokenize(char* file) {
 		lasttype = curtype;
 	}
 
+	if(curitem == head) {
+		eprintf("File '%s' is empty\n", file);
+		exit(1);
+	}
+
 	lastitem->next = NULL;
 	free(curitem);
 	freestr(tmptoken);