diff --git a/core/src/epicli/cli/engine/TerraformCommand.py b/core/src/epicli/cli/engine/TerraformCommand.py
index 96df16ee11..a97656e9b7 100644
--- a/core/src/epicli/cli/engine/TerraformCommand.py
+++ b/core/src/epicli/cli/engine/TerraformCommand.py
@@ -33,7 +33,7 @@ def run(self, command, env, auto_approve=False):
             cmd.append('--auto-approve')
 
         if command == self.APPLY_COMMAND:
-            cmd.append('-state=' + self.working_directory + '/terraform.tfstate')
+            cmd.append(f'-state={self.working_directory}/terraform.tfstate')
 
         cmd.append(self.working_directory)
 
@@ -46,6 +46,6 @@ def run(self, command, env, auto_approve=False):
             logpipe.close()
 
         if sp.returncode != 0:
-            raise Exception('Error running: "' + cmd + '"')
+            raise Exception(f'Error running: "{cmd}"')
         else:
-            self.logger.info('Done running "' + cmd + '"')
+            self.logger.info(f'Done running "{cmd}"')
diff --git a/core/src/epicli/cli/engine/azure/AzureCommand.py b/core/src/epicli/cli/engine/azure/AzureCommand.py
index 9917aa50cc..4ace7093de 100644
--- a/core/src/epicli/cli/engine/azure/AzureCommand.py
+++ b/core/src/epicli/cli/engine/azure/AzureCommand.py
@@ -43,7 +43,7 @@ def run(self, cmd):
                 output = {}
 
         if sp.returncode != 0:
-            raise Exception('Error running: "' + cmd + '"')
+            raise Exception(f'Error running: "{cmd}"')
         else:
-            self.logger.info('Done running "' + cmd + '"')
+            self.logger.info(f'Done running "{cmd}"')
             return output