diff --git a/Makefile b/Makefile
index 57f19da3..f2afed00 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ endif
 OBJ := $(SRC:.c=.o)
 
 # define default flags, and override to append mandatory flags
-override CFLAGS := -O3 -std=gnu99 -fPIC -Wall -Wextra -Werror -Wshadow $(CFLAGS)
+override CFLAGS := -O3 -std=gnu99 -fPIC -fvisibility=hidden -Wall -Wextra -Werror -Wshadow $(CFLAGS)
 override CFLAGS += -Ilib/src -Ilib/include
 
 # ABI versioning
diff --git a/lib/include/tree_sitter/api.h b/lib/include/tree_sitter/api.h
index 9e936ff8..1cc6b3e9 100644
--- a/lib/include/tree_sitter/api.h
+++ b/lib/include/tree_sitter/api.h
@@ -1,6 +1,8 @@
 #ifndef TREE_SITTER_API_H_
 #define TREE_SITTER_API_H_
 
+#pragma GCC visibility push(default)
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -1163,4 +1165,6 @@ void ts_set_allocator(
 }
 #endif
 
+#pragma GCC visibility pop
+
 #endif  // TREE_SITTER_API_H_