diff --git a/src/lib/buildPacks/docker.ts b/src/lib/buildPacks/docker.ts
index 2c86bb532..371ffed82 100644
--- a/src/lib/buildPacks/docker.ts
+++ b/src/lib/buildPacks/docker.ts
@@ -28,11 +28,11 @@ export default async function ({
 				if (secret.isBuildSecret) {
 					if (pullmergeRequestId) {
 						if (secret.isPRMRSecret) {
-							Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+							Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 						}
 					} else {
 						if (!secret.isPRMRSecret) {
-							Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+							Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 						}
 					}
 				}
diff --git a/src/lib/buildPacks/nextjs.ts b/src/lib/buildPacks/nextjs.ts
index 4f1f3b0d6..0f58b3b84 100644
--- a/src/lib/buildPacks/nextjs.ts
+++ b/src/lib/buildPacks/nextjs.ts
@@ -23,11 +23,11 @@ const createDockerfile = async (data, image): Promise<void> => {
 			if (secret.isBuildSecret) {
 				if (pullmergeRequestId) {
 					if (secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				} else {
 					if (!secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				}
 			}
diff --git a/src/lib/buildPacks/node.ts b/src/lib/buildPacks/node.ts
index 54527a728..869e28b5d 100644
--- a/src/lib/buildPacks/node.ts
+++ b/src/lib/buildPacks/node.ts
@@ -24,11 +24,11 @@ const createDockerfile = async (data, image): Promise<void> => {
 			if (secret.isBuildSecret) {
 				if (pullmergeRequestId) {
 					if (secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				} else {
 					if (!secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				}
 			}
diff --git a/src/lib/buildPacks/nuxtjs.ts b/src/lib/buildPacks/nuxtjs.ts
index 207afe864..bfa48bf73 100644
--- a/src/lib/buildPacks/nuxtjs.ts
+++ b/src/lib/buildPacks/nuxtjs.ts
@@ -23,11 +23,11 @@ const createDockerfile = async (data, image): Promise<void> => {
 			if (secret.isBuildSecret) {
 				if (pullmergeRequestId) {
 					if (secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				} else {
 					if (!secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				}
 			}
diff --git a/src/lib/buildPacks/static.ts b/src/lib/buildPacks/static.ts
index 17900ced3..e9e7179d5 100644
--- a/src/lib/buildPacks/static.ts
+++ b/src/lib/buildPacks/static.ts
@@ -22,11 +22,11 @@ const createDockerfile = async (data, image): Promise<void> => {
 			if (secret.isBuildSecret) {
 				if (pullmergeRequestId) {
 					if (secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				} else {
 					if (!secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				}
 			}
diff --git a/src/lib/docker.ts b/src/lib/docker.ts
index 717303040..89290fba2 100644
--- a/src/lib/docker.ts
+++ b/src/lib/docker.ts
@@ -27,11 +27,11 @@ export async function buildCacheImageWithNode(data, imageForBuild) {
 			if (secret.isBuildSecret) {
 				if (pullmergeRequestId) {
 					if (secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				} else {
 					if (!secret.isPRMRSecret) {
-						Dockerfile.push(`ARG ${secret.name} ${secret.value}`);
+						Dockerfile.push(`ARG ${secret.name}=${secret.value}`);
 					}
 				}
 			}