diff --git a/ci/Jenkinsfile.linux b/ci/Jenkinsfile.linux
index e951bcfd2a..5445eb3d80 100644
--- a/ci/Jenkinsfile.linux
+++ b/ci/Jenkinsfile.linux
@@ -25,6 +25,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
 
   options {
@@ -49,8 +54,6 @@ pipeline {
     TARGET = "linux/${getArch()}"
     /* Improve make performance */
     MAKEFLAGS = "-j4 V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* Makefile assumes the compiler folder is included */
     QTDIR = "/opt/qt/5.15.2/gcc_64"
     PATH = "${env.QTDIR}/bin:${env.PATH}"
diff --git a/ci/Jenkinsfile.macos b/ci/Jenkinsfile.macos
index 978631b268..64458824a1 100644
--- a/ci/Jenkinsfile.macos
+++ b/ci/Jenkinsfile.macos
@@ -20,6 +20,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
 
   options {
@@ -44,8 +49,6 @@ pipeline {
     TARGET = "macos/${getArch()}"
     /* Improve make performance */
     MAKEFLAGS = "-j4 V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* WARNING: Qt 5.15.8 installed via Brew. */
     QTDIR = '/opt/homebrew/opt/qt@5'
     PATH = "${env.QTDIR}/bin:${env.PATH}"
diff --git a/ci/Jenkinsfile.tests-e2e b/ci/Jenkinsfile.tests-e2e
index 77fd7a9328..f33c717708 100644
--- a/ci/Jenkinsfile.tests-e2e
+++ b/ci/Jenkinsfile.tests-e2e
@@ -29,6 +29,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
 
   options {
@@ -58,8 +63,6 @@ pipeline {
     TARGET = 'tests/e2e'
     /* Improve make performance */
     MAKEFLAGS = "-j4 V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* Makefile assumes the compiler folder is included */
     QTDIR = '/opt/qt/5.15.2/gcc_64'
     PATH = "${env.QTDIR}/bin:${env.PATH}"
diff --git a/ci/Jenkinsfile.tests-imports b/ci/Jenkinsfile.tests-imports
index 529131778a..db415b7f7e 100644
--- a/ci/Jenkinsfile.tests-imports
+++ b/ci/Jenkinsfile.tests-imports
@@ -14,6 +14,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
   
   options {
@@ -36,8 +41,6 @@ pipeline {
     TARGET = 'tests/imports'
     /* Improve make performance */
     MAKEFLAGS = "-j4 V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* Makefile assumes the compiler folder is included */
     QTDIR = "/opt/qt/5.15.2/gcc_64"
     PATH = "${env.QTDIR}/bin:${env.PATH}"
diff --git a/ci/Jenkinsfile.tests-nim b/ci/Jenkinsfile.tests-nim
index 4da59d6a6e..9d9f58a5c7 100644
--- a/ci/Jenkinsfile.tests-nim
+++ b/ci/Jenkinsfile.tests-nim
@@ -17,6 +17,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
 
   options {
@@ -39,8 +44,6 @@ pipeline {
     TARGET = 'tests/nim'
     /* Improve make performance */
     MAKEFLAGS = "-j4 V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* Makefile assumes the compiler folder is included */
     QTDIR = "/opt/qt/5.15.2/gcc_64"
     /* Include library in order to compile the project */
diff --git a/ci/Jenkinsfile.windows b/ci/Jenkinsfile.windows
index 518d51a87a..86fb558148 100644
--- a/ci/Jenkinsfile.windows
+++ b/ci/Jenkinsfile.windows
@@ -17,6 +17,11 @@ pipeline {
       description: 'Level of verbosity based on nimbus-build-system setup.',
       choices: ['0', '1', '2']
     )
+    string(
+      name: 'NIMFLAGS',
+      description: 'Extra Nim flags. Examples: --verbosity:2 --passL:"-v" --passC:"-v"',
+      defaultValue: '--colors:off'
+    )
   }
 
   options {
@@ -41,8 +46,6 @@ pipeline {
     TARGET = "windows/${getArch()}"
     /* Improve make performance */
     MAKEFLAGS = "-j${utils.getProcCount()} V=${params.VERBOSE}"
-    /* Disable colors in Nim compiler logs */
-    NIMFLAGS = '--colors:off'
     /* Explicitly set the QT version */
     QTDIR = "/c/Qt/5.15.2/msvc2019_64"
     PATH = "${env.QTDIR}/bin:${env.PATH}"