diff --git a/.drone.yml b/.drone.yml
index b42062a..8cfeaf6 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -17,11 +17,11 @@ steps:
     image: gcc:12.2.0
     commands:
       - cd algo2/pairingheap
-      - gcc -o main pairingheap.c
+      - gcc -Wall -Werror -o main pairingheap.c
       - ./main
   - name: radixheap
     image: gcc:12.2.0
     commands:
       - cd algo2/radixheap
-      - gcc -o main radixheap.c
+      - gcc -Wall -Werror -o main radixheap.c
       - ./main
diff --git a/algo2/radixheap/radixheap.c b/algo2/radixheap/radixheap.c
index d4b5b47..693d031 100644
--- a/algo2/radixheap/radixheap.c
+++ b/algo2/radixheap/radixheap.c
@@ -51,12 +51,12 @@ struct RHeap {
     struct RHeapNode *buckets;
 };
 
-static unsigned int log2(unsigned int x) {
+static unsigned int uintlog2(unsigned int x) {
     return 8 * sizeof(unsigned int) - __builtin_clz(x);
 }
 
 void rh_init(struct RHeap *rh, unsigned int c) {
-    unsigned int k = 1 + log2(c);
+    unsigned int k = 1 + uintlog2(c);
 
     rh->min = 0;
     rh->buckets_size = 1 + k; // extra space for bucket -1