diff --git a/src/containers/array.c b/src/containers/array.c
index 93476fbd..4b5e5bc5 100644
--- a/src/containers/array.c
+++ b/src/containers/array.c
@@ -145,7 +145,7 @@ int array_container_shrink_to_fit(array_container_t *src) {
 
 /* Free memory. */
 void array_container_free(array_container_t *arr) {
-    if(arr == NULL) return;
+    if (arr == NULL) return;
     roaring_free(arr->array);
     roaring_free(arr);
 }
diff --git a/src/containers/bitset.c b/src/containers/bitset.c
index 00fabec2..7b84af82 100644
--- a/src/containers/bitset.c
+++ b/src/containers/bitset.c
@@ -130,7 +130,7 @@ void bitset_container_add_from_range(bitset_container_t *bitset, uint32_t min,
 
 /* Free memory. */
 void bitset_container_free(bitset_container_t *bitset) {
-    if(bitset == NULL) return;
+    if (bitset == NULL) return;
     roaring_aligned_free(bitset->words);
     roaring_free(bitset);
 }
diff --git a/src/containers/run.c b/src/containers/run.c
index d78e45ea..986db6d1 100644
--- a/src/containers/run.c
+++ b/src/containers/run.c
@@ -189,7 +189,7 @@ void run_container_offset(const run_container_t *c, container_t **loc,
 
 /* Free memory. */
 void run_container_free(run_container_t *run) {
-    if(run == NULL) return;
+    if (run == NULL) return;
     roaring_free(run->runs);
     roaring_free(run);
 }