diff --git a/src/agent/Makefile b/src/agent/Makefile
index b98b9510ef..8b97439e8f 100644
--- a/src/agent/Makefile
+++ b/src/agent/Makefile
@@ -106,10 +106,10 @@ default: $(TARGET) show-header
 $(TARGET): $(GENERATED_CODE) $(TARGET_PATH)
 
 $(TARGET_PATH): $(SOURCES) | show-summary
-	@cargo build --target $(TRIPLE) --$(BUILD_TYPE)
+	@RUSTFLAGS="--deny warnings" cargo build --target $(TRIPLE) --$(BUILD_TYPE)
 
 optimize: $(SOURCES) | show-summary show-header
-	@RUSTFLAGS='-C link-arg=-s' cargo build --target $(TRIPLE) --$(BUILD_TYPE)
+	@RUSTFLAGS='-C link-arg=-s --deny-warnings' cargo build --target $(TRIPLE) --$(BUILD_TYPE)
 
 show-header:
 	@printf "%s - version %s (commit %s)\n\n" "$(TARGET)" "$(VERSION)" "$(COMMIT_MSG)"
diff --git a/src/trace-forwarder/Makefile b/src/trace-forwarder/Makefile
index e02aef3975..ae73325922 100644
--- a/src/trace-forwarder/Makefile
+++ b/src/trace-forwarder/Makefile
@@ -6,7 +6,7 @@
 default: build
 
 build:
-	cargo build -v
+	RUSTFLAGS="--deny warnings" cargo build -v
 
 clean:
 	cargo clean
diff --git a/tools/agent-ctl/Makefile b/tools/agent-ctl/Makefile
index e02aef3975..ae73325922 100644
--- a/tools/agent-ctl/Makefile
+++ b/tools/agent-ctl/Makefile
@@ -6,7 +6,7 @@
 default: build
 
 build:
-	cargo build -v
+	RUSTFLAGS="--deny warnings" cargo build -v
 
 clean:
 	cargo clean