diff --git a/current/algorithms/callingc_zig/.gitignore b/current/algorithms/callingc_zig/.gitignore
new file mode 100644
index 0000000..d8c8979
--- /dev/null
+++ b/current/algorithms/callingc_zig/.gitignore
@@ -0,0 +1,2 @@
+.zig-cache
+zig-out
diff --git a/current/algorithms/callingc_zig/build.zig b/current/algorithms/callingc_zig/build.zig
new file mode 100644
index 0000000..82b816c
--- /dev/null
+++ b/current/algorithms/callingc_zig/build.zig
@@ -0,0 +1,23 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const exe = b.addExecutable(.{
+        .name = "callingc",
+        .root_source_file = b.path("src/callingc.zig"),
+        .target = b.host,
+        .optimize = b.standardOptimizeOption(.{}),
+    });
+    exe.addIncludePath(b.path("c-src"));
+    exe.addCSourceFile(.{ .file = b.path("c-src/callingc.c") });
+    b.installArtifact(exe);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "run the app");
+    run_step.dependOn(&run_cmd.step);
+}
diff --git a/current/algorithms/callingc_zig/c-src/callingc.c b/current/algorithms/callingc_zig/c-src/callingc.c
new file mode 100644
index 0000000..50aaa8a
--- /dev/null
+++ b/current/algorithms/callingc_zig/c-src/callingc.c
@@ -0,0 +1,5 @@
+#include "callingc.h"
+
+int add_numbers(int a, int b) {
+  return 2*a+b;
+}
diff --git a/current/algorithms/callingc_zig/c-src/callingc.h b/current/algorithms/callingc_zig/c-src/callingc.h
new file mode 100644
index 0000000..19875c5
--- /dev/null
+++ b/current/algorithms/callingc_zig/c-src/callingc.h
@@ -0,0 +1 @@
+int add_numbers(int a, int b);
diff --git a/current/algorithms/callingc_zig/src/callingc.zig b/current/algorithms/callingc_zig/src/callingc.zig
new file mode 100644
index 0000000..0619cef
--- /dev/null
+++ b/current/algorithms/callingc_zig/src/callingc.zig
@@ -0,0 +1,16 @@
+const std = @import("std");
+
+const callingc = @cImport({
+    @cInclude("callingc.h");
+});
+
+pub fn main() !void {
+    const stdout_file = std.io.getStdOut().writer();
+    var bw = std.io.bufferedWriter(stdout_file);
+    const stdout = bw.writer();
+
+    const c = callingc.add_numbers(3, 4);
+
+    try stdout.print("Hello World {d}!!\n", .{c});
+    try bw.flush();
+}